97215657008 has 40 divisors (see below), whose sum is σ = 198912768768. Its totient is φ = 45934256192.

The previous prime is 97215656999. The next prime is 97215657043. The reversal of 97215657008 is 80075651279.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560860 + ... + 1621947.

Almost surely, 2^97215657008 is an apocalyptic number.

It is an amenable number.

97215657008 is an abundant number, since it is smaller than the sum of its proper divisors (101697111760).

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

97215657008 is a wasteful number, since it uses less digits than its factorization.

97215657008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182921 (or 3182915 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 97215657008 in words is "ninety-seven billion, two hundred fifteen million, six hundred fifty-seven thousand, eight".