79112269081 has 16 divisors (see below), whose sum is σ = 80905765248. Its totient is φ = 77338643200.

The previous prime is 79112269039. The next prime is 79112269129. The reversal of 79112269081 is 18096221197.

It is a cyclic number.

It is not a de Polignac number, because 79112269081 - 2⁷ = 79112268953 is a prime.

It is a super-2 number, since 2×79112269081² (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 (79112269001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14441715 + ... + 14447191.

It is an arithmetic number, because the mean of its divisors is an integer number (5056610328).

Almost surely, 2^79112269081 is an apocalyptic number.

79112269081 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

79112269081 is a deficient number, since it is larger than the sum of its proper divisors (1793496167).

79112269081 is a wasteful number, since it uses less digits than its factorization.

79112269081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 79112269081 in words is "seventy-nine billion, one hundred twelve million, two hundred sixty-nine thousand, eighty-one".