39489805164 has 24 divisors (see below), whose sum is σ = 93178194480. Its totient is φ = 13015366144.

The previous prime is 39489805153. The next prime is 39489805207. The reversal of 39489805164 is 46150898493.

39489805164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 18486669 + ... + 18488804.

It is an arithmetic number, because the mean of its divisors is an integer number (3882424770).

Almost surely, 2^39489805164 is an apocalyptic number.

It is an amenable number.

39489805164 is an abundant number, since it is smaller than the sum of its proper divisors (53688389316).

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

39489805164 is a wasteful number, since it uses less digits than its factorization.

39489805164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36975569 (or 36975567 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 57.

The spelling of 39489805164 in words is "thirty-nine billion, four hundred eighty-nine million, eight hundred five thousand, one hundred sixty-four".