45918470538 has 20 divisors (see below), whose sum is σ = 102891388050. Its totient is φ = 15306156792.

The previous prime is 45918470537. The next prime is 45918470579. The reversal of 45918470538 is 83507481954.

45918470538 is a `hidden beast` number, since 4 + 59 + 18 + 47 + 0 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36931999329 + 8986471209 = 192177^2 + 94797^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (45918470531) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 141723513 + ... + 141723836.

Almost surely, 2^45918470538 is an apocalyptic number.

45918470538 is an abundant number, since it is smaller than the sum of its proper divisors (56972917512).

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

45918470538 is a wasteful number, since it uses less digits than its factorization.

45918470538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283447363 (or 283447354 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 45918470538 in words is "forty-five billion, nine hundred eighteen million, four hundred seventy thousand, five hundred thirty-eight".