18304195337 has 2 divisors, whose sum is σ = 18304195338. Its totient is φ = 18304195336.

The previous prime is 18304195333. The next prime is 18304195339. The reversal of 18304195337 is 73359140381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17638761721 + 665433616 = 132811^2 + 25796^2 .

It is a cyclic number.

It is not a de Polignac number, because 18304195337 - 2² = 18304195333 is a prime.

Together with 18304195339, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18304195333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9152097668 + 9152097669.

It is an arithmetic number, because the mean of its divisors is an integer number (9152097669).

Almost surely, 2^18304195337 is an apocalyptic number.

It is an amenable number.

18304195337 is a deficient number, since it is larger than the sum of its proper divisors (1).

18304195337 is an equidigital number, since it uses as much as digits as its factorization.

18304195337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 18304195337 in words is "eighteen billion, three hundred four million, one hundred ninety-five thousand, three hundred thirty-seven".