12718558734281 has 2 divisors, whose sum is σ = 12718558734282. Its totient is φ = 12718558734280.

The previous prime is 12718558734251. The next prime is 12718558734319. The reversal of 12718558734281 is 18243785581721.

It is a happy number.

12718558734281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6997564474681 + 5720994259600 = 2645291^2 + 2391860^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12718558734281 is a prime.

It is a super-2 number, since 2×12718558734281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12718558734241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359279367140 + 6359279367141.

It is an arithmetic number, because the mean of its divisors is an integer number (6359279367141).

Almost surely, 2^{12718558734281} is an apocalyptic number.

It is an amenable number.

12718558734281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718558734281 is an equidigital number, since it uses as much as digits as its factorization.

12718558734281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30105600, while the sum is 62.

The spelling of 12718558734281 in words is "twelve trillion, seven hundred eighteen billion, five hundred fifty-eight million, seven hundred thirty-four thousand, two hundred eighty-one".