18574988036441 has 2 divisors, whose sum is σ = 18574988036442. Its totient is φ = 18574988036440.

The previous prime is 18574988036393. The next prime is 18574988036459. The reversal of 18574988036441 is 14463088947581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12268234780816 + 6306753255625 = 3502604^2 + 2511325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18574988036441 is a prime.

It is not a weakly prime, because it can be changed into another prime (18574988036461) 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, 9287494018220 + 9287494018221.

It is an arithmetic number, because the mean of its divisors is an integer number (9287494018221).

Almost surely, 2^{18574988036441} is an apocalyptic number.

It is an amenable number.

18574988036441 is a deficient number, since it is larger than the sum of its proper divisors (1).

18574988036441 is an equidigital number, since it uses as much as digits as its factorization.

18574988036441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185794560, while the sum is 68.

The spelling of 18574988036441 in words is "eighteen trillion, five hundred seventy-four billion, nine hundred eighty-eight million, thirty-six thousand, four hundred forty-one".