79737969808 has 20 divisors (see below), whose sum is σ = 176562647680. Its totient is φ = 34173415584.

The previous prime is 79737969799. The next prime is 79737969809. The reversal of 79737969808 is 80896973797.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79737969809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355972968 + ... + 355973191.

It is an arithmetic number, because the mean of its divisors is an integer number (8828132384).

Almost surely, 2^79737969808 is an apocalyptic number.

It is an amenable number.

79737969808 is an abundant number, since it is smaller than the sum of its proper divisors (96824677872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79737969808 is a wasteful number, since it uses less digits than its factorization.

79737969808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711946174 (or 711946168 counting only the distinct ones).

The product of its (nonzero) digits is 288054144, while the sum is 73.

The spelling of 79737969808 in words is "seventy-nine billion, seven hundred thirty-seven million, nine hundred sixty-nine thousand, eight hundred eight".