79672893812 has 6 divisors (see below), whose sum is σ = 139427564178. Its totient is φ = 39836446904.

The previous prime is 79672893763. The next prime is 79672893827. The reversal of 79672893812 is 21839827697.

It can be written as a sum of positive squares in only one way, i.e., 58349301136 + 21323592676 = 241556^2 + 146026^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9959111723 + ... + 9959111730.

It is an arithmetic number, because the mean of its divisors is an integer number (23237927363).

Almost surely, 2^79672893812 is an apocalyptic number.

It is an amenable number.

79672893812 is a deficient number, since it is larger than the sum of its proper divisors (59754670366).

79672893812 is a wasteful number, since it uses less digits than its factorization.

79672893812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19918223457 (or 19918223455 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 62.

The spelling of 79672893812 in words is "seventy-nine billion, six hundred seventy-two million, eight hundred ninety-three thousand, eight hundred twelve".