97916557884 has 48 divisors (see below), whose sum is σ = 232503747840. Its totient is φ = 32063643520.

The previous prime is 97916557861. The next prime is 97916557901. The reversal of 97916557884 is 48875561979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001857 + ... + 1095239.

It is an arithmetic number, because the mean of its divisors is an integer number (4843828080).

Almost surely, 2^97916557884 is an apocalyptic number.

It is an amenable number.

97916557884 is an abundant number, since it is smaller than the sum of its proper divisors (134587189956).

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

97916557884 is a wasteful number, since it uses less digits than its factorization.

97916557884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94930 (or 94928 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 69.

The spelling of 97916557884 in words is "ninety-seven billion, nine hundred sixteen million, five hundred fifty-seven thousand, eight hundred eighty-four".