97116926021 has 4 divisors (see below), whose sum is σ = 102228343200. Its totient is φ = 92005508844.

The previous prime is 97116925991. The next prime is 97116926041. The reversal of 97116926021 is 12062961179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97116926021 - 2⁶ = 97116925957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97116926041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2555708561 + ... + 2555708598.

It is an arithmetic number, because the mean of its divisors is an integer number (25557085800).

Almost surely, 2^97116926021 is an apocalyptic number.

It is an amenable number.

97116926021 is a deficient number, since it is larger than the sum of its proper divisors (5111417179).

97116926021 is a wasteful number, since it uses less digits than its factorization.

97116926021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111417178.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 97116926021 in words is "ninety-seven billion, one hundred sixteen million, nine hundred twenty-six thousand, twenty-one".