15711872612 has 12 divisors (see below), whose sum is σ = 27497154300. Its totient is φ = 7855542816.

The previous prime is 15711872609. The next prime is 15711872621. The reversal of 15711872612 is 21627811751.

It can be written as a sum of positive squares in 2 ways, for example, as 13283945536 + 2427927076 = 115256^2 + 49274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15711872612.

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, 3098 + ... + 177294.

It is an arithmetic number, because the mean of its divisors is an integer number (2291429525).

Almost surely, 2^15711872612 is an apocalyptic number.

It is an amenable number.

15711872612 is a deficient number, since it is larger than the sum of its proper divisors (11785281688).

15711872612 is a wasteful number, since it uses less digits than its factorization.

15711872612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196750 (or 196748 counting only the distinct ones).

The product of its digits is 47040, while the sum is 41.

The spelling of 15711872612 in words is "fifteen billion, seven hundred eleven million, eight hundred seventy-two thousand, six hundred twelve".