79797040765680 has 160 divisors (see below), whose sum is σ = 282718122739200. Its totient is φ = 18238768321536.

The previous prime is 79797040765679. The next prime is 79797040765703. The reversal of 79797040765680 is 8656704079797.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55790511 + ... + 57202929.

It is an arithmetic number, because the mean of its divisors is an integer number (1766988267120).

Almost surely, 2^{79797040765680} is an apocalyptic number.

79797040765680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79797040765680 is an abundant number, since it is smaller than the sum of its proper divisors (202921081973520).

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

79797040765680 is a wasteful number, since it uses less digits than its factorization.

79797040765680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446071 (or 1446065 counting only the distinct ones).

The product of its (nonzero) digits is 1120210560, while the sum is 75.

The spelling of 79797040765680 in words is "seventy-nine trillion, seven hundred ninety-seven billion, forty million, seven hundred sixty-five thousand, six hundred eighty".