79992776744 has 8 divisors (see below), whose sum is σ = 149986456410. Its totient is φ = 39996388368.

The previous prime is 79992776737. The next prime is 79992776761. The reversal of 79992776744 is 44767729997.

It can be written as a sum of positive squares in only one way, i.e., 53476562500 + 26516214244 = 231250^2 + 162838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999548539 + ... + 4999548554.

Almost surely, 2^79992776744 is an apocalyptic number.

It is an amenable number.

79992776744 is a deficient number, since it is larger than the sum of its proper divisors (69993679666).

79992776744 is a wasteful number, since it uses less digits than its factorization.

79992776744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999097099 (or 9999097095 counting only the distinct ones).

The product of its digits is 336063168, while the sum is 71.

The spelling of 79992776744 in words is "seventy-nine billion, nine hundred ninety-two million, seven hundred seventy-six thousand, seven hundred forty-four".