131988557432 has 32 divisors (see below), whose sum is σ = 247839134400. Its totient is φ = 65898201600.

The previous prime is 131988557429. The next prime is 131988557453. The reversal of 131988557432 is 234755889131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19290332 + ... + 19297172.

It is an arithmetic number, because the mean of its divisors is an integer number (7744972950).

Almost surely, 2^131988557432 is an apocalyptic number.

It is an amenable number.

131988557432 is a deficient number, since it is larger than the sum of its proper divisors (115850576968).

131988557432 is a wasteful number, since it uses less digits than its factorization.

131988557432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007 (or 10003 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 131988557432 in words is "one hundred thirty-one billion, nine hundred eighty-eight million, five hundred fifty-seven thousand, four hundred thirty-two".