18336099589 has 2 divisors, whose sum is σ = 18336099590. Its totient is φ = 18336099588.

The previous prime is 18336099461. The next prime is 18336099611. The reversal of 18336099589 is 98599063381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11223707364 + 7112392225 = 105942^2 + 84335^2 .

It is a cyclic number.

It is not a de Polignac number, because 18336099589 - 2⁷ = 18336099461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18336099389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9168049794 + 9168049795.

It is an arithmetic number, because the mean of its divisors is an integer number (9168049795).

Almost surely, 2^18336099589 is an apocalyptic number.

It is an amenable number.

18336099589 is a deficient number, since it is larger than the sum of its proper divisors (1).

18336099589 is an equidigital number, since it uses as much as digits as its factorization.

18336099589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 18336099589 in words is "eighteen billion, three hundred thirty-six million, ninety-nine thousand, five hundred eighty-nine".