79479486387 has 40 divisors (see below), whose sum is σ = 135786579456. Its totient is φ = 45384472368.

The previous prime is 79479486367. The next prime is 79479486421. The reversal of 79479486387 is 78368497497.

79479486387 is a `hidden beast` number, since 79 + 4 + 79 + 486 + 3 + 8 + 7 = 666.

It is not a de Polignac number, because 79479486387 - 2¹¹ = 79479484339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79479486367) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 757588 + ... + 856094.

Almost surely, 2^79479486387 is an apocalyptic number.

79479486387 is a deficient number, since it is larger than the sum of its proper divisors (56307093069).

79479486387 is a wasteful number, since it uses less digits than its factorization.

79479486387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99949 (or 99940 counting only the distinct ones).

The product of its digits is 512096256, while the sum is 72.

The spelling of 79479486387 in words is "seventy-nine billion, four hundred seventy-nine million, four hundred eighty-six thousand, three hundred eighty-seven".