79660893312 has 512 divisors, whose sum is σ = 315686246400. Its totient is φ = 19098685440.

The previous prime is 79660893289. The next prime is 79660893341. The reversal of 79660893312 is 21339806697.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3447943 + ... + 3470969.

It is an arithmetic number, because the mean of its divisors is an integer number (616574700).

Almost surely, 2^79660893312 is an apocalyptic number.

79660893312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79660893312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157843123200).

79660893312 is an abundant number, since it is smaller than the sum of its proper divisors (236025353088).

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

79660893312 is a wasteful number, since it uses less digits than its factorization.

79660893312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23081 (or 23063 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 79660893312 in words is "seventy-nine billion, six hundred sixty million, eight hundred ninety-three thousand, three hundred twelve".