15592903081972 has 48 divisors (see below), whose sum is σ = 28397415481344. Its totient is φ = 7483673376000.

The previous prime is 15592903081949. The next prime is 15592903081979. The reversal of 15592903081972 is 27918030929551.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 15592903081972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15592903081979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7689072 + ... + 9503032.

It is an arithmetic number, because the mean of its divisors is an integer number (591612822528).

Almost surely, 2^{15592903081972} is an apocalyptic number.

It is an amenable number.

15592903081972 is a deficient number, since it is larger than the sum of its proper divisors (12804512399372).

15592903081972 is a wasteful number, since it uses less digits than its factorization.

15592903081972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814560 (or 1814558 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 61.

The spelling of 15592903081972 in words is "fifteen trillion, five hundred ninety-two billion, nine hundred three million, eighty-one thousand, nine hundred seventy-two".