978890370597 has 16 divisors (see below), whose sum is σ = 1450739472000. Its totient is φ = 652354398432.

The previous prime is 978890370589. The next prime is 978890370671. The reversal of 978890370597 is 795073098879.

978890370597 is a `hidden beast` number, since 9 + 7 + 88 + 90 + 370 + 5 + 97 = 666.

It is not a de Polignac number, because 978890370597 - 2³ = 978890370589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978890375597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6568897 + ... + 6716262.

It is an arithmetic number, because the mean of its divisors is an integer number (90671217000).

Almost surely, 2^978890370597 is an apocalyptic number.

It is an amenable number.

978890370597 is a deficient number, since it is larger than the sum of its proper divisors (471849101403).

978890370597 is a wasteful number, since it uses less digits than its factorization.

978890370597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287897 (or 13287891 counting only the distinct ones).

The product of its (nonzero) digits is 240045120, while the sum is 72.

The spelling of 978890370597 in words is "nine hundred seventy-eight billion, eight hundred ninety million, three hundred seventy thousand, five hundred ninety-seven".