79960839959 has 64 divisors (see below), whose sum is σ = 113124802560. Its totient is φ = 54432155520.

The previous prime is 79960839953. The next prime is 79960839967. The reversal of 79960839959 is 95993806997.

It is a cyclic number.

It is not a de Polignac number, because 79960839959 - 2⁴ = 79960839943 is a prime.

It is a super-2 number, since 2×79960839959² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79960839953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29801432 + ... + 29804114.

It is an arithmetic number, because the mean of its divisors is an integer number (1767575040).

Almost surely, 2^79960839959 is an apocalyptic number.

79960839959 is a deficient number, since it is larger than the sum of its proper divisors (33163962601).

79960839959 is a wasteful number, since it uses less digits than its factorization.

79960839959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300.

The product of its (nonzero) digits is 297606960, while the sum is 74.

It can be divided in two parts, 79960 and 839959, that added together give a palindrome (919919).

The spelling of 79960839959 in words is "seventy-nine billion, nine hundred sixty million, eight hundred thirty-nine thousand, nine hundred fifty-nine".