39491860944 has 40 divisors (see below), whose sum is σ = 102045156192. Its totient is φ = 13160790400.

The previous prime is 39491860927. The next prime is 39491860973. The reversal of 39491860944 is 44906819493.

It is a super-2 number, since 2×39491860944² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107419 + ... + 300869.

Almost surely, 2^39491860944 is an apocalyptic number.

It is an amenable number.

39491860944 is an abundant number, since it is smaller than the sum of its proper divisors (62553295248).

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

39491860944 is a wasteful number, since it uses less digits than its factorization.

39491860944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197715 (or 197709 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 39491860944 in words is "thirty-nine billion, four hundred ninety-one million, eight hundred sixty thousand, nine hundred forty-four".