12699717399 has 6 divisors (see below), whose sum is σ = 18344036256. Its totient is φ = 8466478260.

The previous prime is 12699717361. The next prime is 12699717413. The reversal of 12699717399 is 99371799621.

It is not a de Polignac number, because 12699717399 - 2¹³ = 12699709207 is a prime.

It is a super-2 number, since 2×12699717399² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699517399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 705539847 + ... + 705539864.

It is an arithmetic number, because the mean of its divisors is an integer number (3057339376).

Almost surely, 2^12699717399 is an apocalyptic number.

12699717399 is a deficient number, since it is larger than the sum of its proper divisors (5644318857).

12699717399 is a wasteful number, since it uses less digits than its factorization.

12699717399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411079717 (or 1411079714 counting only the distinct ones).

The product of its digits is 11573604, while the sum is 63.

The spelling of 12699717399 in words is "twelve billion, six hundred ninety-nine million, seven hundred seventeen thousand, three hundred ninety-nine".