12718780455751 has 2 divisors, whose sum is σ = 12718780455752. Its totient is φ = 12718780455750.

The previous prime is 12718780455721. The next prime is 12718780455763. The reversal of 12718780455751 is 15755408781721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12718780455751 - 2⁹ = 12718780455239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12718780455751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12718780455721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359390227875 + 6359390227876.

It is an arithmetic number, because the mean of its divisors is an integer number (6359390227876).

Almost surely, 2^{12718780455751} is an apocalyptic number.

12718780455751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718780455751 is an equidigital number, since it uses as much as digits as its factorization.

12718780455751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21952000, while the sum is 61.

The spelling of 12718780455751 in words is "twelve trillion, seven hundred eighteen billion, seven hundred eighty million, four hundred fifty-five thousand, seven hundred fifty-one".