18885106337 has 2 divisors, whose sum is σ = 18885106338. Its totient is φ = 18885106336.

The previous prime is 18885106313. The next prime is 18885106379. The reversal of 18885106337 is 73360158881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18067661056 + 817445281 = 134416^2 + 28591^2 .

It is a cyclic number.

It is not a de Polignac number, because 18885106337 - 2²⁸ = 18616670881 is a prime.

It is not a weakly prime, because it can be changed into another prime (18885106307) 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, 9442553168 + 9442553169.

It is an arithmetic number, because the mean of its divisors is an integer number (9442553169).

Almost surely, 2^18885106337 is an apocalyptic number.

It is an amenable number.

18885106337 is a deficient number, since it is larger than the sum of its proper divisors (1).

18885106337 is an equidigital number, since it uses as much as digits as its factorization.

18885106337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 18885106337 in words is "eighteen billion, eight hundred eighty-five million, one hundred six thousand, three hundred thirty-seven".