39999709164 has 24 divisors (see below), whose sum is σ = 96551022960. Its totient is φ = 12873469504.

The previous prime is 39999709153. The next prime is 39999709199. The reversal of 39999709164 is 46190799993.

39999709164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39999709095 and 39999709104.

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, 57470499 + ... + 57471194.

It is an arithmetic number, because the mean of its divisors is an integer number (4022959290).

Almost surely, 2^39999709164 is an apocalyptic number.

It is an amenable number.

39999709164 is an abundant number, since it is smaller than the sum of its proper divisors (56551313796).

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

39999709164 is a wasteful number, since it uses less digits than its factorization.

39999709164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114941729 (or 114941727 counting only the distinct ones).

The product of its (nonzero) digits is 29760696, while the sum is 66.

The spelling of 39999709164 in words is "thirty-nine billion, nine hundred ninety-nine million, seven hundred nine thousand, one hundred sixty-four".