12998758474818 has 48 divisors (see below), whose sum is σ = 28221950952000. Its totient is φ = 4324001324832.

The previous prime is 12998758474817. The next prime is 12998758474901. The reversal of 12998758474818 is 81847485789921.

12998758474818 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 87 + 58 + 4 + 7 + 481 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (12998758474813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263893480 + ... + 263942732.

It is an arithmetic number, because the mean of its divisors is an integer number (587957311500).

Almost surely, 2^{12998758474818} is an apocalyptic number.

12998758474818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12998758474818 is an abundant number, since it is smaller than the sum of its proper divisors (15223192477182).

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

12998758474818 is a wasteful number, since it uses less digits than its factorization.

12998758474818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79143 (or 79140 counting only the distinct ones).

The product of its digits is 2601123840, while the sum is 81.

The spelling of 12998758474818 in words is "twelve trillion, nine hundred ninety-eight billion, seven hundred fifty-eight million, four hundred seventy-four thousand, eight hundred eighteen".