12998137256244 has 120 divisors (see below), whose sum is σ = 38840357844288. Its totient is φ = 3713139843840.

The previous prime is 12998137256243. The next prime is 12998137256353. The reversal of 12998137256244 is 44265273189921.

It is a happy number.

12998137256244 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 8 + 137 + 256 + 244 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998137256243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13343932 + ... + 14284844.

Almost surely, 2^{12998137256244} is an apocalyptic number.

12998137256244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12998137256244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19420178922144).

12998137256244 is an abundant number, since it is smaller than the sum of its proper divisors (25842220588044).

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

12998137256244 is a wasteful number, since it uses less digits than its factorization.

12998137256244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947027 (or 947016 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 12998137256244 in words is "twelve trillion, nine hundred ninety-eight billion, one hundred thirty-seven million, two hundred fifty-six thousand, two hundred forty-four".