79937356919 has 6 divisors (see below), whose sum is σ = 92988354024. Its totient is φ = 68517734460.

The previous prime is 79937356787. The next prime is 79937356937. The reversal of 79937356919 is 91965373997.

It is not a de Polignac number, because 79937356919 - 2¹² = 79937352823 is a prime.

It is a super-2 number, since 2×79937356919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79937356319) 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, 815687267 + ... + 815687364.

It is an arithmetic number, because the mean of its divisors is an integer number (15498059004).

Almost surely, 2^79937356919 is an apocalyptic number.

79937356919 is a deficient number, since it is larger than the sum of its proper divisors (13050997105).

79937356919 is a wasteful number, since it uses less digits than its factorization.

79937356919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631374645 (or 1631374638 counting only the distinct ones).

The product of its digits is 86802030, while the sum is 68.

The spelling of 79937356919 in words is "seventy-nine billion, nine hundred thirty-seven million, three hundred fifty-six thousand, nine hundred nineteen".