12699179299 has 4 divisors (see below), whose sum is σ = 13446189864. Its totient is φ = 11952168736.

The previous prime is 12699179291. The next prime is 12699179323. The reversal of 12699179299 is 99297199621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99297199621 = 12647 ⋅7851443.

It is a cyclic number.

It is not a de Polignac number, because 12699179299 - 2³ = 12699179291 is a prime.

It is a super-2 number, since 2×12699179299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12699179299.

It is not an unprimeable number, because it can be changed into a prime (12699179291) 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, 373505257 + ... + 373505290.

It is an arithmetic number, because the mean of its divisors is an integer number (3361547466).

Almost surely, 2^12699179299 is an apocalyptic number.

12699179299 is a deficient number, since it is larger than the sum of its proper divisors (747010565).

12699179299 is an equidigital number, since it uses as much as digits as its factorization.

12699179299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747010564.

The product of its digits is 9920232, while the sum is 64.

The spelling of 12699179299 in words is "twelve billion, six hundred ninety-nine million, one hundred seventy-nine thousand, two hundred ninety-nine".