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A Septemvigintillion (1 Septemvigintillion) is 10 to the power of 84 (10^84). This is an extremely huge number!

How many zeros in a Septemvigintillion?

There are 84 zeros in a Septemvigintillion.

What's before Septemvigintillion?

A Sesvigintillion is smaller than a Septemvigintillion.

What's after Septemvigintillion?

A Octovigintillion is larger than a Septemvigintillion.


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

Is Septemvigintillion the largest number?

Septemvigintillion 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.

Septemvigintillion written out

Septemvigintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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