79226691667 has 4 divisors (see below), whose sum is σ = 80721534960. Its totient is φ = 77731848376.

The previous prime is 79226691637. The next prime is 79226691707. The reversal of 79226691667 is 76619662297.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79226691667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79226691637) 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, 747421567 + ... + 747421672.

It is an arithmetic number, because the mean of its divisors is an integer number (20180383740).

Almost surely, 2^79226691667 is an apocalyptic number.

79226691667 is a deficient number, since it is larger than the sum of its proper divisors (1494843293).

79226691667 is a wasteful number, since it uses less digits than its factorization.

79226691667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494843292.

The product of its digits is 20575296, while the sum is 61.

The spelling of 79226691667 in words is "seventy-nine billion, two hundred twenty-six million, six hundred ninety-one thousand, six hundred sixty-seven".