45957909920 has 48 divisors (see below), whose sum is σ = 116927533800. Its totient is φ = 16969073664.

The previous prime is 45957909919. The next prime is 45957909947. The reversal of 45957909920 is 2990975954.

It can be written as a sum of positive squares in 4 ways, for example, as 40624821136 + 5333088784 = 201556^2 + 73028^2 .

It is a super-2 number, since 2×45957909920² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45957909920.

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, 11045495 + ... + 11049654.

Almost surely, 2^45957909920 is an apocalyptic number.

45957909920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45957909920 is an abundant number, since it is smaller than the sum of its proper divisors (70969623880).

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

45957909920 is a wasteful number, since it uses less digits than its factorization.

45957909920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095177 (or 22095169 counting only the distinct ones).

The product of its (nonzero) digits is 9185400, while the sum is 59.

The spelling of 45957909920 in words is "forty-five billion, nine hundred fifty-seven million, nine hundred nine thousand, nine hundred twenty".