39494438844 has 72 divisors (see below), whose sum is σ = 112841285760. Its totient is φ = 10690221024.

The previous prime is 39494438807. The next prime is 39494438857. The reversal of 39494438844 is 44883449493.

39494438844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1756392 + ... + 1778735.

It is an arithmetic number, because the mean of its divisors is an integer number (1567240080).

Almost surely, 2^39494438844 is an apocalyptic number.

It is an amenable number.

39494438844 is an abundant number, since it is smaller than the sum of its proper divisors (73346846916).

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

39494438844 is a wasteful number, since it uses less digits than its factorization.

39494438844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535167 (or 3535158 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 60.

The spelling of 39494438844 in words is "thirty-nine billion, four hundred ninety-four million, four hundred thirty-eight thousand, eight hundred forty-four".