45491136472 has 32 divisors (see below), whose sum is σ = 86746878720. Its totient is φ = 22360485280.

The previous prime is 45491136461. The next prime is 45491136497. The reversal of 45491136472 is 27463119454.

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, 81693 + ... + 312499.

It is an arithmetic number, because the mean of its divisors is an integer number (2710839960).

Almost surely, 2^45491136472 is an apocalyptic number.

It is an amenable number.

45491136472 is a deficient number, since it is larger than the sum of its proper divisors (41255742248).

45491136472 is a wasteful number, since it uses less digits than its factorization.

45491136472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231231 (or 231227 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The spelling of 45491136472 in words is "forty-five billion, four hundred ninety-one million, one hundred thirty-six thousand, four hundred seventy-two".