15877922128 has 20 divisors (see below), whose sum is σ = 32382604960. Its totient is φ = 7521120864.

The previous prime is 15877922119. The next prime is 15877922149. The reversal of 15877922128 is 82122977851.

It is a super-2 number, since 2×15877922128² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26114700 + ... + 26115307.

It is an arithmetic number, because the mean of its divisors is an integer number (1619130248).

Almost surely, 2^15877922128 is an apocalyptic number.

It is an amenable number.

15877922128 is an abundant number, since it is smaller than the sum of its proper divisors (16504682832).

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

15877922128 is a wasteful number, since it uses less digits than its factorization.

15877922128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52230034 (or 52230028 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 52.

The spelling of 15877922128 in words is "fifteen billion, eight hundred seventy-seven million, nine hundred twenty-two thousand, one hundred twenty-eight".