12998137256347 has 8 divisors (see below), whose sum is σ = 13004795481840. Its totient is φ = 12991480442880.

The previous prime is 12998137256243. The next prime is 12998137256353. The reversal of 12998137256347 is 74365273189921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12998137256347 - 2³⁹ = 12448381442459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12998137056347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18314347 + ... + 19010827.

It is an arithmetic number, because the mean of its divisors is an integer number (1625599435230).

Almost surely, 2^{12998137256347} is an apocalyptic number.

12998137256347 is a deficient number, since it is larger than the sum of its proper divisors (6658225493).

12998137256347 is an equidigital number, since it uses as much as digits as its factorization.

12998137256347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706013.

The product of its digits is 137168640, while the sum is 67.

The spelling of 12998137256347 in words is "twelve trillion, nine hundred ninety-eight billion, one hundred thirty-seven million, two hundred fifty-six thousand, three hundred forty-seven".