18256018064579 has 2 divisors, whose sum is σ = 18256018064580. Its totient is φ = 18256018064578.

The previous prime is 18256018064567. The next prime is 18256018064677. The reversal of 18256018064579 is 97546081065281.

It is a weak prime.

It is an emirp because it is prime and its reverse (97546081065281) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18256018064579 is a prime.

It is not a weakly prime, because it can be changed into another prime (18256018264579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9128009032289 + 9128009032290.

It is an arithmetic number, because the mean of its divisors is an integer number (9128009032290).

Almost surely, 2^{18256018064579} is an apocalyptic number.

18256018064579 is a deficient number, since it is larger than the sum of its proper divisors (1).

18256018064579 is an equidigital number, since it uses as much as digits as its factorization.

18256018064579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 62.

The spelling of 18256018064579 in words is "eighteen trillion, two hundred fifty-six billion, eighteen million, sixty-four thousand, five hundred seventy-nine".