18714290010721 has 2 divisors, whose sum is σ = 18714290010722. Its totient is φ = 18714290010720.

The previous prime is 18714290010677. The next prime is 18714290010727. The reversal of 18714290010721 is 12701009241781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9406366320400 + 9307923690321 = 3066980^2 + 3050889^2 .

It is a cyclic number.

It is not a de Polignac number, because 18714290010721 - 2⁷ = 18714290010593 is a prime.

It is not a weakly prime, because it can be changed into another prime (18714290010727) by changing a digit.

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, 9357145005360 + 9357145005361.

It is an arithmetic number, because the mean of its divisors is an integer number (9357145005361).

Almost surely, 2^{18714290010721} is an apocalyptic number.

It is an amenable number.

18714290010721 is a deficient number, since it is larger than the sum of its proper divisors (1).

18714290010721 is an equidigital number, since it uses as much as digits as its factorization.

18714290010721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 18714290010721 in words is "eighteen trillion, seven hundred fourteen billion, two hundred ninety million, ten thousand, seven hundred twenty-one".