79776706896 has 50 divisors (see below), whose sum is σ = 230896938602. Its totient is φ = 26592235200.

The previous prime is 79776706859. The next prime is 79776706903. The reversal of 79776706896 is 69860767797.

It can be written as a sum of positive squares in only one way, i.e., 72317966400 + 7458740496 = 268920^2 + 86364^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30776755 + ... + 30779346.

Almost surely, 2^79776706896 is an apocalyptic number.

It is an amenable number.

79776706896 is an abundant number, since it is smaller than the sum of its proper divisors (151120231706).

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

79776706896 is a wasteful number, since it uses less digits than its factorization.

79776706896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61556121 (or 61556106 counting only the distinct ones).

The product of its (nonzero) digits is 336063168, while the sum is 72.

The spelling of 79776706896 in words is "seventy-nine billion, seven hundred seventy-six million, seven hundred six thousand, eight hundred ninety-six".