15797639272 has 16 divisors (see below), whose sum is σ = 29786054400. Its totient is φ = 7854691440.

The previous prime is 15797639269. The next prime is 15797639293. The reversal of 15797639272 is 27293679751.

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, 5514504 + ... + 5517367.

It is an arithmetic number, because the mean of its divisors is an integer number (1861628400).

Almost surely, 2^15797639272 is an apocalyptic number.

It is an amenable number.

15797639272 is a deficient number, since it is larger than the sum of its proper divisors (13988415128).

15797639272 is a wasteful number, since it uses less digits than its factorization.

15797639272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032056 (or 11032052 counting only the distinct ones).

The product of its digits is 10001880, while the sum is 58.

The spelling of 15797639272 in words is "fifteen billion, seven hundred ninety-seven million, six hundred thirty-nine thousand, two hundred seventy-two".