31882189245680 has 80 divisors (see below), whose sum is σ = 74340788938560. Its totient is φ = 12715942846464.

The previous prime is 31882189245607. The next prime is 31882189245689. The reversal of 31882189245680 is 8654298128813.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31882189245689) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 663870149 + ... + 663918171.

It is an arithmetic number, because the mean of its divisors is an integer number (929259861732).

Almost surely, 2^{31882189245680} is an apocalyptic number.

It is an amenable number.

31882189245680 is an abundant number, since it is smaller than the sum of its proper divisors (42458599692880).

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

31882189245680 is a wasteful number, since it uses less digits than its factorization.

31882189245680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71898 (or 71892 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 65.

The spelling of 31882189245680 in words is "thirty-one trillion, eight hundred eighty-two billion, one hundred eighty-nine million, two hundred forty-five thousand, six hundred eighty".