79718276885 has 32 divisors (see below), whose sum is σ = 109355938272. Its totient is φ = 55266140160.

The previous prime is 79718276879. The next prime is 79718276899. The reversal of 79718276885 is 58867281797.

It can be written as a sum of positive squares in 16 ways, for example, as 26793433969 + 52924842916 = 163687^2 + 230054^2 .

It is not a de Polignac number, because 79718276885 - 2⁶ = 79718276821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 347825 + ... + 529545.

It is an arithmetic number, because the mean of its divisors is an integer number (3417373071).

Almost surely, 2^79718276885 is an apocalyptic number.

It is an amenable number.

79718276885 is a deficient number, since it is larger than the sum of its proper divisors (29637661387).

79718276885 is a wasteful number, since it uses less digits than its factorization.

79718276885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182153.

The product of its digits is 94832640, while the sum is 68.

The spelling of 79718276885 in words is "seventy-nine billion, seven hundred eighteen million, two hundred seventy-six thousand, eight hundred eighty-five".