97638717392 has 40 divisors (see below), whose sum is σ = 189947679624. Its totient is φ = 48620242944.

The previous prime is 97638717377. The next prime is 97638717401. The reversal of 97638717392 is 29371783679.

It can be written as a sum of positive squares in 4 ways, for example, as 16559571856 + 81079145536 = 128684^2 + 284744^2 .

It is a congruent number.

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, 6066668 + ... + 6082740.

Almost surely, 2^97638717392 is an apocalyptic number.

It is an amenable number.

97638717392 is a deficient number, since it is larger than the sum of its proper divisors (92308962232).

97638717392 is a wasteful number, since it uses less digits than its factorization.

97638717392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607 (or 17601 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 62.

The spelling of 97638717392 in words is "ninety-seven billion, six hundred thirty-eight million, seven hundred seventeen thousand, three hundred ninety-two".