39207989864 has 16 divisors (see below), whose sum is σ = 73633754400. Its totient is φ = 19572322032.

The previous prime is 39207989773. The next prime is 39207989903. The reversal of 39207989864 is 46898970293.

It is a self number, because there is not a number n which added to its sum of digits gives 39207989864.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3953852 + ... + 3963755.

It is an arithmetic number, because the mean of its divisors is an integer number (4602109650).

Almost surely, 2^39207989864 is an apocalyptic number.

It is an amenable number.

39207989864 is a deficient number, since it is larger than the sum of its proper divisors (34425764536).

39207989864 is a wasteful number, since it uses less digits than its factorization.

39207989864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7918232 (or 7918228 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 39207989864 in words is "thirty-nine billion, two hundred seven million, nine hundred eighty-nine thousand, eight hundred sixty-four".