79807408318 has 12 divisors (see below), whose sum is σ = 131583289320. Its totient is φ = 36276094580.

The previous prime is 79807408301. The next prime is 79807408319. The reversal of 79807408318 is 81380470897.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79807408319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164891098 + ... + 164891581.

It is an arithmetic number, because the mean of its divisors is an integer number (10965274110).

Almost surely, 2^79807408318 is an apocalyptic number.

79807408318 is a deficient number, since it is larger than the sum of its proper divisors (51775881002).

79807408318 is a wasteful number, since it uses less digits than its factorization.

79807408318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329782703 (or 329782692 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 79807408318 in words is "seventy-nine billion, eight hundred seven million, four hundred eight thousand, three hundred eighteen".