97872635856 has 20 divisors (see below), whose sum is σ = 252837642752. Its totient is φ = 32624211936.

The previous prime is 97872635843. The next prime is 97872635881. The reversal of 97872635856 is 65853627879.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019506576 + ... + 1019506671.

Almost surely, 2^97872635856 is an apocalyptic number.

It is an amenable number.

97872635856 is an abundant number, since it is smaller than the sum of its proper divisors (154965006896).

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

97872635856 is a wasteful number, since it uses less digits than its factorization.

97872635856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039013258 (or 2039013252 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 66.

The spelling of 97872635856 in words is "ninety-seven billion, eight hundred seventy-two million, six hundred thirty-five thousand, eight hundred fifty-six".