79748288668 has 12 divisors (see below), whose sum is σ = 147768887952. Its totient is φ = 37528606400.

The previous prime is 79748288647. The next prime is 79748288713. The reversal of 79748288668 is 86688284797.

It is a self number, because there is not a number n which added to its sum of digits gives 79748288668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586384408 + ... + 586384543.

It is an arithmetic number, because the mean of its divisors is an integer number (12314073996).

Almost surely, 2^79748288668 is an apocalyptic number.

It is an amenable number.

79748288668 is a deficient number, since it is larger than the sum of its proper divisors (68020599284).

79748288668 is a wasteful number, since it uses less digits than its factorization.

79748288668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172768972 (or 1172768970 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 73.

The spelling of 79748288668 in words is "seventy-nine billion, seven hundred forty-eight million, two hundred eighty-eight thousand, six hundred sixty-eight".