79009440658 has 16 divisors (see below), whose sum is σ = 122048496000. Its totient is φ = 38343560112.

The previous prime is 79009440649. The next prime is 79009440677. The reversal of 79009440658 is 85604490097.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4228473 + ... + 4247116.

It is an arithmetic number, because the mean of its divisors is an integer number (7628031000).

Almost surely, 2^79009440658 is an apocalyptic number.

79009440658 is a deficient number, since it is larger than the sum of its proper divisors (43039055342).

79009440658 is a wasteful number, since it uses less digits than its factorization.

79009440658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8475729.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 79009440658 in words is "seventy-nine billion, nine million, four hundred forty thousand, six hundred fifty-eight".