12998758474838 has 4 divisors (see below), whose sum is σ = 19498137712260. Its totient is φ = 6499379237418.

The previous prime is 12998758474817. The next prime is 12998758474901. The reversal of 12998758474838 is 83847485789921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249689618708 + ... + 3249689618711.

It is an arithmetic number, because the mean of its divisors is an integer number (4874534428065).

Almost surely, 2^{12998758474838} is an apocalyptic number.

12998758474838 is a deficient number, since it is larger than the sum of its proper divisors (6499379237422).

12998758474838 is an equidigital number, since it uses as much as digits as its factorization.

12998758474838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499379237421.

The product of its digits is 7803371520, while the sum is 83.

The spelling of 12998758474838 in words is "twelve trillion, nine hundred ninety-eight billion, seven hundred fifty-eight million, four hundred seventy-four thousand, eight hundred thirty-eight".