78999304724 has 54 divisors (see below), whose sum is σ = 144505301850. Its totient is φ = 37786218624.

The previous prime is 78999304651. The next prime is 78999304733. The reversal of 78999304724 is 42740399987.

It can be written as a sum of positive squares in 9 ways, for example, as 12708503824 + 66290800900 = 112732^2 + 257470^2 .

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 17 ways as a sum of consecutive naturals, for example, 198990494 + ... + 198990890.

Almost surely, 2^78999304724 is an apocalyptic number.

It is an amenable number.

78999304724 is a deficient number, since it is larger than the sum of its proper divisors (65505997126).

78999304724 is a wasteful number, since it uses less digits than its factorization.

78999304724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 78999304724 in words is "seventy-eight billion, nine hundred ninety-nine million, three hundred four thousand, seven hundred twenty-four".