45617578442 has 16 divisors (see below), whose sum is σ = 68678178912. Its totient is φ = 22724894160.

The previous prime is 45617578387. The next prime is 45617578451. The reversal of 45617578442 is 24487571654.

It is a happy number.

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, 2881673 + ... + 2897459.

It is an arithmetic number, because the mean of its divisors is an integer number (4292386182).

Almost surely, 2^45617578442 is an apocalyptic number.

45617578442 is a deficient number, since it is larger than the sum of its proper divisors (23060600470).

45617578442 is a wasteful number, since it uses less digits than its factorization.

45617578442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21013.

The product of its digits is 7526400, while the sum is 53.

The spelling of 45617578442 in words is "forty-five billion, six hundred seventeen million, five hundred seventy-eight thousand, four hundred forty-two".