79637688342 has 24 divisors (see below), whose sum is σ = 173018498016. Its totient is φ = 26473561776.

The previous prime is 79637688341. The next prime is 79637688353. The reversal of 79637688342 is 24388673697.

It is a super-2 number, since 2×79637688342² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79637688342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79637688341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6021073 + ... + 6034284.

It is an arithmetic number, because the mean of its divisors is an integer number (7209104084).

Almost surely, 2^79637688342 is an apocalyptic number.

79637688342 is an abundant number, since it is smaller than the sum of its proper divisors (93380809674).

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

79637688342 is a wasteful number, since it uses less digits than its factorization.

79637688342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12055732 (or 12055729 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 79637688342 in words is "seventy-nine billion, six hundred thirty-seven million, six hundred eighty-eight thousand, three hundred forty-two".