15431977132 has 24 divisors (see below), whose sum is σ = 31727282832. Its totient is φ = 6474955200.

The previous prime is 15431977123. The next prime is 15431977151. The reversal of 15431977132 is 23177913451.

15431977132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13488919 + ... + 13490062.

It is an arithmetic number, because the mean of its divisors is an integer number (1321970118).

Almost surely, 2^15431977132 is an apocalyptic number.

It is an amenable number.

15431977132 is an abundant number, since it is smaller than the sum of its proper divisors (16295305700).

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

15431977132 is a wasteful number, since it uses less digits than its factorization.

15431977132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26979009 (or 26979007 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The spelling of 15431977132 in words is "fifteen billion, four hundred thirty-one million, nine hundred seventy-seven thousand, one hundred thirty-two".