18363636323 has 2 divisors, whose sum is σ = 18363636324. Its totient is φ = 18363636322.

The previous prime is 18363636289. The next prime is 18363636391. The reversal of 18363636323 is 32363636381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18363636323 - 2¹² = 18363632227 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (18363636523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9181818161 + 9181818162.

It is an arithmetic number, because the mean of its divisors is an integer number (9181818162).

Almost surely, 2^18363636323 is an apocalyptic number.

18363636323 is a deficient number, since it is larger than the sum of its proper divisors (1).

18363636323 is an equidigital number, since it uses as much as digits as its factorization.

18363636323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 44.

The spelling of 18363636323 in words is "eighteen billion, three hundred sixty-three million, six hundred thirty-six thousand, three hundred twenty-three".