32131879518931 has 4 divisors (see below), whose sum is σ = 32146873398592. Its totient is φ = 32116885639272.

The previous prime is 32131879518923. The next prime is 32131879518979. The reversal of 32131879518931 is 13981597813123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32131879518931 - 2³ = 32131879518923 is a prime.

It is a super-2 number, since 2×32131879518931² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32131879518931.

It is not an unprimeable number, because it can be changed into a prime (32131879518911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7496936616 + ... + 7496940901.

It is an arithmetic number, because the mean of its divisors is an integer number (8036718349648).

Almost surely, 2^{32131879518931} is an apocalyptic number.

32131879518931 is a deficient number, since it is larger than the sum of its proper divisors (14993879661).

32131879518931 is a wasteful number, since it uses less digits than its factorization.

32131879518931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14993879660.

The product of its digits is 9797760, while the sum is 61.

The spelling of 32131879518931 in words is "thirty-two trillion, one hundred thirty-one billion, eight hundred seventy-nine million, five hundred eighteen thousand, nine hundred thirty-one".