97932659840 has 64 divisors (see below), whose sum is σ = 237958396920. Its totient is φ = 38530867200.

The previous prime is 97932659809. The next prime is 97932659857. The reversal of 97932659840 is 4895623979.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37255176256 + 60677483584 = 193016^2 + 246328^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215221 + ... + 1293300.

Almost surely, 2^97932659840 is an apocalyptic number.

It is an amenable number.

97932659840 is an abundant number, since it is smaller than the sum of its proper divisors (140025737080).

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

97932659840 is a wasteful number, since it uses less digits than its factorization.

97932659840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508601 (or 2508589 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 97932659840 in words is "ninety-seven billion, nine hundred thirty-two million, six hundred fifty-nine thousand, eight hundred forty".