45645690172 has 12 divisors (see below), whose sum is σ = 79977023056. Its totient is φ = 22795112160.

The previous prime is 45645690157. The next prime is 45645690179. The reversal of 45645690172 is 27109654654.

45645690172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45645690179) 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, 6929529 + ... + 6936112.

Almost surely, 2^45645690172 is an apocalyptic number.

It is an amenable number.

45645690172 is a deficient number, since it is larger than the sum of its proper divisors (34331332884).

45645690172 is a wasteful number, since it uses less digits than its factorization.

45645690172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866468 (or 13866466 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 45645690172 in words is "forty-five billion, six hundred forty-five million, six hundred ninety thousand, one hundred seventy-two".