12799999999998 has 20 divisors (see below), whose sum is σ = 28681481481840. Its totient is φ = 4266666666612.

The previous prime is 12799999999949. The next prime is 12800000000003. The reversal of 12799999999998 is 89999999999721.

It is a self number, because there is not a number n which added to its sum of digits gives 12799999999998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39506172678 + ... + 39506173001.

It is an arithmetic number, because the mean of its divisors is an integer number (1434074074092).

Almost surely, 2^{12799999999998} is an apocalyptic number.

12799999999998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12799999999998 is an abundant number, since it is smaller than the sum of its proper divisors (15881481481842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12799999999998 is an equidigital number, since it uses as much as digits as its factorization.

12799999999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79012345693 (or 79012345684 counting only the distinct ones).

The product of its digits is 390519852912, while the sum is 108.

The spelling of 12799999999998 in words is "twelve trillion, seven hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".