15344472972 has 18 divisors (see below), whose sum is σ = 35804771548. Its totient is φ = 5114681288.

The previous prime is 15344472961. The next prime is 15344473021. The reversal of 15344472972 is 27927444351.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411229 + ... + 446987.

Almost surely, 2^15344472972 is an apocalyptic number.

15344472972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15344472972 is an abundant number, since it is smaller than the sum of its proper divisors (20460298576).

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

15344472972 is an frugal number, since it uses more digits than its factorization.

15344472972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71525 (or 35764 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

Multiplying 15344472972 by its sum of digits (48), we get a square (736534702656 = 858216²).

The spelling of 15344472972 in words is "fifteen billion, three hundred forty-four million, four hundred seventy-two thousand, nine hundred seventy-two".