45645190992 has 30 divisors (see below), whose sum is σ = 127743139082. Its totient is φ = 15215063616.

The previous prime is 45645190973. The next prime is 45645191003. The reversal of 45645190992 is 29909154654.

It can be written as a sum of positive squares in only one way, i.e., 40846026816 + 4799164176 = 202104^2 + 69276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158490103 + ... + 158490390.

Almost surely, 2^45645190992 is an apocalyptic number.

It is an amenable number.

45645190992 is an abundant number, since it is smaller than the sum of its proper divisors (82097948090).

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

45645190992 is a wasteful number, since it uses less digits than its factorization.

45645190992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316980507 (or 316980498 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 45645190992 in words is "forty-five billion, six hundred forty-five million, one hundred ninety thousand, nine hundred ninety-two".