79326912081 has 8 divisors (see below), whose sum is σ = 105781798080. Its totient is φ = 52878317072.

The previous prime is 79326912079. The next prime is 79326912083. The reversal of 79326912081 is 18021962397.

It is an interprime number because it is at equal distance from previous prime (79326912079) and next prime (79326912083).

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

It is a cyclic number.

It is not a de Polignac number, because 79326912081 - 2¹ = 79326912079 is a prime.

It is a super-2 number, since 2×79326912081² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79326912081.

It is not an unprimeable number, because it can be changed into a prime (79326912083) 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, 1543245 + ... + 1593818.

It is an arithmetic number, because the mean of its divisors is an integer number (13222724760).

Almost surely, 2^79326912081 is an apocalyptic number.

It is an amenable number.

79326912081 is a deficient number, since it is larger than the sum of its proper divisors (26454885999).

79326912081 is a wasteful number, since it uses less digits than its factorization.

79326912081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145495.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 79326912081 in words is "seventy-nine billion, three hundred twenty-six million, nine hundred twelve thousand, eighty-one".