15872872920 has 64 divisors (see below), whose sum is σ = 47627244000. Its totient is φ = 4231999488.

The previous prime is 15872872871. The next prime is 15872872921. The reversal of 15872872920 is 2927827851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15872872921) 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, 1027816 + ... + 1043144.

Almost surely, 2^15872872920 is an apocalyptic number.

15872872920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15872872920 is an abundant number, since it is smaller than the sum of its proper divisors (31754371080).

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

15872872920 is a wasteful number, since it uses less digits than its factorization.

15872872920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972 (or 23968 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 15872872920 in words is "fifteen billion, eight hundred seventy-two million, eight hundred seventy-two thousand, nine hundred twenty".