15904446972 has 24 divisors (see below), whose sum is σ = 37477808592. Its totient is φ = 5248992000.

The previous prime is 15904446953. The next prime is 15904446991. The reversal of 15904446972 is 27964440951.

It is an interprime number because it is at equal distance from previous prime (15904446953) and next prime (15904446991).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6560029 + ... + 6562452.

It is an arithmetic number, because the mean of its divisors is an integer number (1561575358).

Almost surely, 2^15904446972 is an apocalyptic number.

15904446972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15904446972 is an abundant number, since it is smaller than the sum of its proper divisors (21573361620).

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

15904446972 is a wasteful number, since it uses less digits than its factorization.

15904446972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122589 (or 13122587 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 15904446972 in words is "fifteen billion, nine hundred four million, four hundred forty-six thousand, nine hundred seventy-two".