79663593808 has 40 divisors (see below), whose sum is σ = 157572950400. Its totient is φ = 39007140480.

The previous prime is 79663593769. The next prime is 79663593827. The reversal of 79663593808 is 80839536697.

It is a self number, because there is not a number n which added to its sum of digits gives 79663593808.

It is a congruent 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, 66060 + ... + 404587.

It is an arithmetic number, because the mean of its divisors is an integer number (3939323760).

Almost surely, 2^79663593808 is an apocalyptic number.

It is an amenable number.

79663593808 is a deficient number, since it is larger than the sum of its proper divisors (77909356592).

79663593808 is a wasteful number, since it uses less digits than its factorization.

79663593808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470875 (or 470869 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 79663593808 in words is "seventy-nine billion, six hundred sixty-three million, five hundred ninety-three thousand, eight hundred eight".