79856115259 has 8 divisors (see below), whose sum is σ = 80130624768. Its totient is φ = 79581861480.

The previous prime is 79856115247. The next prime is 79856115281. The reversal of 79856115259 is 95251165897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79856115259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79856115359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572514 + ... + 698200.

It is an arithmetic number, because the mean of its divisors is an integer number (10016328096).

Almost surely, 2^79856115259 is an apocalyptic number.

79856115259 is a deficient number, since it is larger than the sum of its proper divisors (274509509).

79856115259 is a wasteful number, since it uses less digits than its factorization.

79856115259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127865.

The product of its digits is 6804000, while the sum is 58.

The spelling of 79856115259 in words is "seventy-nine billion, eight hundred fifty-six million, one hundred fifteen thousand, two hundred fifty-nine".