39979398012 has 48 divisors (see below), whose sum is σ = 94661767200. Its totient is φ = 13131175680.

The previous prime is 39979398007. The next prime is 39979398059. The reversal of 39979398012 is 21089397993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152314 + ... + 321182.

It is an arithmetic number, because the mean of its divisors is an integer number (1972120150).

Almost surely, 2^39979398012 is an apocalyptic number.

It is an amenable number.

39979398012 is an abundant number, since it is smaller than the sum of its proper divisors (54682369188).

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

39979398012 is a wasteful number, since it uses less digits than its factorization.

39979398012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169166 (or 169164 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 60.

The spelling of 39979398012 in words is "thirty-nine billion, nine hundred seventy-nine million, three hundred ninety-eight thousand, twelve".