79396821960 has 64 divisors (see below), whose sum is σ = 243729794880. Its totient is φ = 20680101120.

The previous prime is 79396821953. The next prime is 79396821967. The reversal of 79396821960 is 6912869397.

It is an interprime number because it is at equal distance from previous prime (79396821953) and next prime (79396821967).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 79396821894 and 79396821903.

It is not an unprimeable number, because it can be changed into a prime (79396821967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7688331 + ... + 7698650.

It is an arithmetic number, because the mean of its divisors is an integer number (3808278045).

Almost surely, 2^79396821960 is an apocalyptic number.

It is an amenable number.

79396821960 is an abundant number, since it is smaller than the sum of its proper divisors (164332972920).

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

79396821960 is a wasteful number, since it uses less digits than its factorization.

79396821960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15387038 (or 15387034 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 79396821960 in words is "seventy-nine billion, three hundred ninety-six million, eight hundred twenty-one thousand, nine hundred sixty".