97875072477 has 48 divisors (see below), whose sum is σ = 174567352960. Its totient is φ = 51458115456.

The previous prime is 97875072461. The next prime is 97875072479. The reversal of 97875072477 is 77427057879.

97875072477 is a `hidden beast` number, since 9 + 7 + 87 + 507 + 2 + 47 + 7 = 666.

It is not a de Polignac number, because 97875072477 - 2⁴ = 97875072461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97875072479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56799 + ... + 446067.

Almost surely, 2^97875072477 is an apocalyptic number.

It is an amenable number.

97875072477 is a deficient number, since it is larger than the sum of its proper divisors (76692280483).

97875072477 is a wasteful number, since it uses less digits than its factorization.

97875072477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389602 (or 389599 counting only the distinct ones).

The product of its (nonzero) digits is 48404160, while the sum is 63.

The spelling of 97875072477 in words is "ninety-seven billion, eight hundred seventy-five million, seventy-two thousand, four hundred seventy-seven".