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A Octoquadragintillion (1 Octoquadragintillion) is 10 to the power of 147 (10^147). This is a gigantic number!

How many zeros in a Octoquadragintillion?

There are 147 zeros in a Octoquadragintillion.

What's before Octoquadragintillion?

A Septenquadragintillion is smaller than a Octoquadragintillion.

What's after Octoquadragintillion?

A Novenquadragintillion is larger than a Octoquadragintillion.


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

Is Octoquadragintillion the largest number?

Octoquadragintillion 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.

Octoquadragintillion written out

Octoquadragintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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