45008537778 has 12 divisors (see below), whose sum is σ = 97518498558. Its totient is φ = 15002845920.

The previous prime is 45008537767. The next prime is 45008537797. The reversal of 45008537778 is 87773580054.

45008537778 is a `hidden beast` number, since 450 + 0 + 8 + 53 + 77 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26303325489 + 18705212289 = 162183^2 + 136767^2 .

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, 1250237143 + ... + 1250237178.

Almost surely, 2^45008537778 is an apocalyptic number.

45008537778 is an abundant number, since it is smaller than the sum of its proper divisors (52509960780).

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

45008537778 is a wasteful number, since it uses less digits than its factorization.

45008537778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500474329 (or 2500474326 counting only the distinct ones).

The product of its (nonzero) digits is 6585600, while the sum is 54.

The spelling of 45008537778 in words is "forty-five billion, eight million, five hundred thirty-seven thousand, seven hundred seventy-eight".