18490958359 has 2 divisors, whose sum is σ = 18490958360. Its totient is φ = 18490958358.

The previous prime is 18490958323. The next prime is 18490958393. The reversal of 18490958359 is 95385909481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18490958359 - 2³³ = 9901023767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18490958297 and 18490958306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18490958309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9245479179 + 9245479180.

It is an arithmetic number, because the mean of its divisors is an integer number (9245479180).

Almost surely, 2^18490958359 is an apocalyptic number.

18490958359 is a deficient number, since it is larger than the sum of its proper divisors (1).

18490958359 is an equidigital number, since it uses as much as digits as its factorization.

18490958359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 18490958359 in words is "eighteen billion, four hundred ninety million, nine hundred fifty-eight thousand, three hundred fifty-nine".