9909526860081 has 24 divisors (see below), whose sum is σ = 14639464854144. Its totient is φ = 6456433235040.

The previous prime is 9909526860067. The next prime is 9909526860083. The reversal of 9909526860081 is 1800686259099.

It is not a de Polignac number, because 9909526860081 - 2⁵ = 9909526860049 is a prime.

It is a super-2 number, since 2×9909526860081² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9909526860083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16659066 + ... + 17243651.

It is an arithmetic number, because the mean of its divisors is an integer number (609977702256).

Almost surely, 2^{9909526860081} is an apocalyptic number.

It is an amenable number.

9909526860081 is a deficient number, since it is larger than the sum of its proper divisors (4729937994063).

9909526860081 is a wasteful number, since it uses less digits than its factorization.

9909526860081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33903461 (or 33903458 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 9909526860081 in words is "nine trillion, nine hundred nine billion, five hundred twenty-six million, eight hundred sixty thousand, eighty-one".