38915972592 has 160 divisors (see below), whose sum is σ = 117059174400. Its totient is φ = 10911124224.

The previous prime is 38915972551. The next prime is 38915972593. The reversal of 38915972592 is 29527951983.

38915972592 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38915972593) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4428459 + ... + 4437237.

It is an arithmetic number, because the mean of its divisors is an integer number (731619840).

Almost surely, 2^38915972592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38915972592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58529587200).

38915972592 is an abundant number, since it is smaller than the sum of its proper divisors (78143201808).

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

38915972592 is a wasteful number, since it uses less digits than its factorization.

38915972592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043 (or 9037 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 60.

The spelling of 38915972592 in words is "thirty-eight billion, nine hundred fifteen million, nine hundred seventy-two thousand, five hundred ninety-two".