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A Nonagintillion (1 Nonagintillion) is 10 to the power of 273 (10^273). This is a truly astronomical number!

How many zeros in a Nonagintillion?

There are 273 zeros in a Nonagintillion.

What's before Nonagintillion?

A Novemoctogintillion is smaller than a Nonagintillion.

What's after Nonagintillion?

A Unnonagintillion is larger than a Nonagintillion.


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

Is Nonagintillion the largest number?

Nonagintillion 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.

Nonagintillion written out

Nonagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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