97170975957 has 24 divisors (see below), whose sum is σ = 142820945568. Its totient is φ = 58721708320.

The previous prime is 97170975917. The next prime is 97170975997. The reversal of 97170975957 is 75957907179.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97170975917) and next prime (97170975997).

It is not a de Polignac number, because 97170975957 - 2⁷ = 97170975829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97170975917) 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, 259758 + ... + 511679.

It is an arithmetic number, because the mean of its divisors is an integer number (5950872732).

Almost surely, 2^97170975957 is an apocalyptic number.

It is an amenable number.

97170975957 is a deficient number, since it is larger than the sum of its proper divisors (45649969611).

97170975957 is a wasteful number, since it uses less digits than its factorization.

97170975957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771809 (or 771798 counting only the distinct ones).

The product of its (nonzero) digits is 43758225, while the sum is 66.

The spelling of 97170975957 in words is "ninety-seven billion, one hundred seventy million, nine hundred seventy-five thousand, nine hundred fifty-seven".