79216913851 has 8 divisors (see below), whose sum is σ = 83102738400. Its totient is φ = 75408036480.

The previous prime is 79216913843. The next prime is 79216913869. The reversal of 79216913851 is 15831961297.

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

It is not a de Polignac number, because 79216913851 - 2³ = 79216913843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79216913051) 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, 19234686 + ... + 19238803.

It is an arithmetic number, because the mean of its divisors is an integer number (10387842300).

Almost surely, 2^79216913851 is an apocalyptic number.

79216913851 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79216913851 is the 125871-st centered decagonal number.

79216913851 is a deficient number, since it is larger than the sum of its proper divisors (3885824549).

79216913851 is a wasteful number, since it uses less digits than its factorization.

79216913851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38473589.

The product of its digits is 816480, while the sum is 52.

The spelling of 79216913851 in words is "seventy-nine billion, two hundred sixteen million, nine hundred thirteen thousand, eight hundred fifty-one".