97657796592 has 60 divisors (see below), whose sum is σ = 275813635240. Its totient is φ = 32253945984.

The previous prime is 97657796581. The next prime is 97657796617. The reversal of 97657796592 is 29569775679.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 97657796592.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3095218 + ... + 3126609.

Almost surely, 2^97657796592 is an apocalyptic number.

It is an amenable number.

97657796592 is an abundant number, since it is smaller than the sum of its proper divisors (178155838648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97657796592 is a wasteful number, since it uses less digits than its factorization.

97657796592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221950 (or 6221941 counting only the distinct ones).

The product of its digits is 450084600, while the sum is 72.

The spelling of 97657796592 in words is "ninety-seven billion, six hundred fifty-seven million, seven hundred ninety-six thousand, five hundred ninety-two".