18009672599 has 2 divisors, whose sum is σ = 18009672600. Its totient is φ = 18009672598.

The previous prime is 18009672563. The next prime is 18009672641. The reversal of 18009672599 is 99527690081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18009672599 - 2¹² = 18009668503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18009677599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9004836299 + 9004836300.

It is an arithmetic number, because the mean of its divisors is an integer number (9004836300).

Almost surely, 2^18009672599 is an apocalyptic number.

18009672599 is a deficient number, since it is larger than the sum of its proper divisors (1).

18009672599 is an equidigital number, since it uses as much as digits as its factorization.

18009672599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 18009672599 in words is "eighteen billion, nine million, six hundred seventy-two thousand, five hundred ninety-nine".