18497303089 has 2 divisors, whose sum is σ = 18497303090. Its totient is φ = 18497303088.

The previous prime is 18497303047. The next prime is 18497303093. The reversal of 18497303089 is 98030379481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16290182689 + 2207120400 = 127633^2 + 46980^2 .

It is a cyclic number.

It is not a de Polignac number, because 18497303089 - 2⁷ = 18497302961 is a prime.

It is not a weakly prime, because it can be changed into another prime (18497303029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9248651544 + 9248651545.

It is an arithmetic number, because the mean of its divisors is an integer number (9248651545).

Almost surely, 2^18497303089 is an apocalyptic number.

It is an amenable number.

18497303089 is a deficient number, since it is larger than the sum of its proper divisors (1).

18497303089 is an equidigital number, since it uses as much as digits as its factorization.

18497303089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 18497303089 in words is "eighteen billion, four hundred ninety-seven million, three hundred three thousand, eighty-nine".