## Septuagintacentillion

A Septuagintacentillion (1 Septuagintacentillion) is 10 to the power of 513 (10^513). This is an excessively astronomical number!

## How many zeros in a Septuagintacentillion?

There are 513 zeros in a Septuagintacentillion.

## What's before Septuagintacentillion?

A Novensexagintacentillion is smaller than a Septuagintacentillion.

## What's after Septuagintacentillion?

A Unseptuagintacentillion is larger than a Septuagintacentillion.

## Septuagintacentillionaire

A Septuagintacentillionaire is someone whos assets, net worth or wealth is 1 or more Septuagintacentillion. It is unlikely anyone will ever be a true Septuagintacentillionaire. If you want to be a Septuagintacentillionaire, play Tap Tales!

## Is Septuagintacentillion the largest number?

Septuagintacentillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

## Septuagintacentillion written out

Septuagintacentillion is written out as:

1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000

## Big Numbers

This is just one of many really big numbers!