79315702389 has 128 divisors (see below), whose sum is σ = 148408565760. Its totient is φ = 40668868800.

The previous prime is 79315702373. The next prime is 79315702451. The reversal of 79315702389 is 98320751397.

79315702389 is a `hidden beast` number, since 7 + 9 + 31 + 570 + 2 + 38 + 9 = 666.

It is not a de Polignac number, because 79315702389 - 2⁴ = 79315702373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79315702789) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 125698104 + ... + 125698734.

It is an arithmetic number, because the mean of its divisors is an integer number (1159441920).

Almost surely, 2^79315702389 is an apocalyptic number.

It is an amenable number.

79315702389 is a deficient number, since it is larger than the sum of its proper divisors (69092863371).

79315702389 is a wasteful number, since it uses less digits than its factorization.

79315702389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 79315702389 in words is "seventy-nine billion, three hundred fifteen million, seven hundred two thousand, three hundred eighty-nine".