79130308081 has 4 divisors (see below), whose sum is σ = 86323972464. Its totient is φ = 71936643700.

The previous prime is 79130308009. The next prime is 79130308087. The reversal of 79130308081 is 18080303197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79130308081 - 2⁷ = 79130307953 is a prime.

It is a super-2 number, since 2×79130308081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79130308087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3596832175 + ... + 3596832196.

It is an arithmetic number, because the mean of its divisors is an integer number (21580993116).

Almost surely, 2^79130308081 is an apocalyptic number.

It is an amenable number.

79130308081 is a deficient number, since it is larger than the sum of its proper divisors (7193664383).

79130308081 is a wasteful number, since it uses less digits than its factorization.

79130308081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193664382.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 79130308081 in words is "seventy-nine billion, one hundred thirty million, three hundred eight thousand, eighty-one".