18022953582209 has 2 divisors, whose sum is σ = 18022953582210. Its totient is φ = 18022953582208.

The previous prime is 18022953582191. The next prime is 18022953582253. The reversal of 18022953582209 is 90228535922081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14999625514225 + 3023328067984 = 3872935^2 + 1738772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18022953582209 is a prime.

It is not a weakly prime, because it can be changed into another prime (18022953582709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9011476791104 + 9011476791105.

It is an arithmetic number, because the mean of its divisors is an integer number (9011476791105).

Almost surely, 2^{18022953582209} is an apocalyptic number.

It is an amenable number.

18022953582209 is a deficient number, since it is larger than the sum of its proper divisors (1).

18022953582209 is an equidigital number, since it uses as much as digits as its factorization.

18022953582209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 18022953582209 in words is "eighteen trillion, twenty-two billion, nine hundred fifty-three million, five hundred eighty-two thousand, two hundred nine".