99907753761 has 12 divisors (see below), whose sum is σ = 144314403220. Its totient is φ = 66603690720.

The previous prime is 99907753733. The next prime is 99907753801. The reversal of 99907753761 is 16735770999.

99907753761 is a `hidden beast` number, since 9 + 9 + 90 + 7 + 7 + 537 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21387307536 + 78520446225 = 146244^2 + 280215^2 .

It is not a de Polignac number, because 99907753761 - 2⁶ = 99907753697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99907753661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440535 + ... + 627603.

Almost surely, 2^99907753761 is an apocalyptic number.

It is an amenable number.

99907753761 is a deficient number, since it is larger than the sum of its proper divisors (44406649459).

99907753761 is a wasteful number, since it uses less digits than its factorization.

99907753761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246416 (or 246413 counting only the distinct ones).

The product of its (nonzero) digits is 22504230, while the sum is 63.

The spelling of 99907753761 in words is "ninety-nine billion, nine hundred seven million, seven hundred fifty-three thousand, seven hundred sixty-one".