18548099159 has 2 divisors, whose sum is σ = 18548099160. Its totient is φ = 18548099158.

The previous prime is 18548099131. The next prime is 18548099189. The reversal of 18548099159 is 95199084581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18548099159 - 2⁸ = 18548098903 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 18548099098 and 18548099107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18548099189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9274049579 + 9274049580.

It is an arithmetic number, because the mean of its divisors is an integer number (9274049580).

Almost surely, 2^18548099159 is an apocalyptic number.

18548099159 is a deficient number, since it is larger than the sum of its proper divisors (1).

18548099159 is an equidigital number, since it uses as much as digits as its factorization.

18548099159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 59.

The spelling of 18548099159 in words is "eighteen billion, five hundred forty-eight million, ninety-nine thousand, one hundred fifty-nine".