15431124172 has 24 divisors (see below), whose sum is σ = 27057349872. Its totient is φ = 7700472000.

The previous prime is 15431124161. The next prime is 15431124187. The reversal of 15431124172 is 27142113451.

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, 8116422 + ... + 8118322.

It is an arithmetic number, because the mean of its divisors is an integer number (1127389578).

Almost surely, 2^15431124172 is an apocalyptic number.

It is an amenable number.

15431124172 is a deficient number, since it is larger than the sum of its proper divisors (11626225700).

15431124172 is a wasteful number, since it uses less digits than its factorization.

15431124172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809 (or 4807 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The spelling of 15431124172 in words is "fifteen billion, four hundred thirty-one million, one hundred twenty-four thousand, one hundred seventy-two".