79999099997 has 8 divisors (see below), whose sum is σ = 84303832320. Its totient is φ = 75763243600.

The previous prime is 79999099979. The next prime is 79999100011.

79999099997 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79999099997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79999099967) 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, 17216597 + ... + 17221242.

It is an arithmetic number, because the mean of its divisors is an integer number (10537979040).

Almost surely, 2^79999099997 is an apocalyptic number.

It is an amenable number.

79999099997 is a deficient number, since it is larger than the sum of its proper divisors (4304732323).

79999099997 is a wasteful number, since it uses less digits than its factorization.

79999099997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34437963.

The product of its (nonzero) digits is 2109289329, while the sum is 86.

The spelling of 79999099997 in words is "seventy-nine billion, nine hundred ninety-nine million, ninety-nine thousand, nine hundred ninety-seven".