45639634508 has 12 divisors (see below), whose sum is σ = 86013157440. Its totient is φ = 21064446672.

The previous prime is 45639634501. The next prime is 45639634517. The reversal of 45639634508 is 80543693654.

It is a self number, because there is not a number n which added to its sum of digits gives 45639634508.

It is not an unprimeable number, because it can be changed into a prime (45639634501) 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, 438842588 + ... + 438842691.

It is an arithmetic number, because the mean of its divisors is an integer number (7167763120).

Almost surely, 2^45639634508 is an apocalyptic number.

It is an amenable number.

45639634508 is a deficient number, since it is larger than the sum of its proper divisors (40373522932).

45639634508 is a wasteful number, since it uses less digits than its factorization.

45639634508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877685296 (or 877685294 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 45639634508 in words is "forty-five billion, six hundred thirty-nine million, six hundred thirty-four thousand, five hundred eight".