18842074592917 has 2 divisors, whose sum is σ = 18842074592918. Its totient is φ = 18842074592916.

The previous prime is 18842074592843. The next prime is 18842074592927. The reversal of 18842074592917 is 71929547024881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10042599028036 + 8799475564881 = 3169006^2 + 2966391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18842074592917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18842074592927) 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, 9421037296458 + 9421037296459.

It is an arithmetic number, because the mean of its divisors is an integer number (9421037296459).

Almost surely, 2^{18842074592917} is an apocalyptic number.

It is an amenable number.

18842074592917 is a deficient number, since it is larger than the sum of its proper divisors (1).

18842074592917 is an equidigital number, since it uses as much as digits as its factorization.

18842074592917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81285120, while the sum is 67.

The spelling of 18842074592917 in words is "eighteen trillion, eight hundred forty-two billion, seventy-four million, five hundred ninety-two thousand, nine hundred seventeen".