79776689756 has 12 divisors (see below), whose sum is σ = 141975465240. Its totient is φ = 39212271120.

The previous prime is 79776689753. The next prime is 79776689809. The reversal of 79776689756 is 65798667797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79776689753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169018175 + ... + 169018646.

It is an arithmetic number, because the mean of its divisors is an integer number (11831288770).

Almost surely, 2^79776689756 is an apocalyptic number.

It is an amenable number.

79776689756 is a deficient number, since it is larger than the sum of its proper divisors (62198775484).

79776689756 is a wasteful number, since it uses less digits than its factorization.

79776689756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338036884 (or 338036882 counting only the distinct ones).

The product of its digits is 1680315840, while the sum is 77.

The spelling of 79776689756 in words is "seventy-nine billion, seven hundred seventy-six million, six hundred eighty-nine thousand, seven hundred fifty-six".