79870039713 has 14 divisors (see below), whose sum is σ = 119750280114. Its totient is φ = 53246692656.

The previous prime is 79870039703. The next prime is 79870039721. The reversal of 79870039713 is 31793007897.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69030731169 + 10839308544 = 262737^2 + 104112^2 .

It is not a de Polignac number, because 79870039713 - 2⁶ = 79870039649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79870039713.

It is not an unprimeable number, because it can be changed into a prime (79870039703) 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 13 ways as a sum of consecutive naturals, for example, 54779820 + ... + 54781277.

Almost surely, 2^79870039713 is an apocalyptic number.

It is an amenable number.

79870039713 is a deficient number, since it is larger than the sum of its proper divisors (39880240401).

79870039713 is an equidigital number, since it uses as much as digits as its factorization.

79870039713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109561115 (or 109561100 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 79870039713 in words is "seventy-nine billion, eight hundred seventy million, thirty-nine thousand, seven hundred thirteen".