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A Novenonagintillion (1 Novenonagintillion) is 10 to the power of 300 (10^300). This is a truly astronomical number!

How many zeros in a Novenonagintillion?

There are 300 zeros in a Novenonagintillion.

What's before Novenonagintillion?

A Octononagintillion is smaller than a Novenonagintillion.

What's after Novenonagintillion?

A Centillion is larger than a Novenonagintillion.


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

Is Novenonagintillion the largest number?

Novenonagintillion 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.

Novenonagintillion written out

Novenonagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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