18364926666277 has 2 divisors, whose sum is σ = 18364926666278. Its totient is φ = 18364926666276.

The previous prime is 18364926666239. The next prime is 18364926666311. The reversal of 18364926666277 is 77266662946381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17736951248676 + 627975417601 = 4211526^2 + 792449^2 .

It is a cyclic number.

It is not a de Polignac number, because 18364926666277 - 2²³ = 18364918277669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18364926666227) 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, 9182463333138 + 9182463333139.

It is an arithmetic number, because the mean of its divisors is an integer number (9182463333139).

Almost surely, 2^{18364926666277} is an apocalyptic number.

It is an amenable number.

18364926666277 is a deficient number, since it is larger than the sum of its proper divisors (1).

18364926666277 is an equidigital number, since it uses as much as digits as its factorization.

18364926666277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1316818944, while the sum is 73.

The spelling of 18364926666277 in words is "eighteen trillion, three hundred sixty-four billion, nine hundred twenty-six million, six hundred sixty-six thousand, two hundred seventy-seven".