18490958339 has 4 divisors (see below), whose sum is σ = 21132523824. Its totient is φ = 15849392856.

The previous prime is 18490958323. The next prime is 18490958359. The reversal of 18490958339 is 93385909481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18490958339 - 2⁴ = 18490958323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18490958309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320782732 + ... + 1320782745.

It is an arithmetic number, because the mean of its divisors is an integer number (5283130956).

Almost surely, 2^18490958339 is an apocalyptic number.

18490958339 is a deficient number, since it is larger than the sum of its proper divisors (2641565485).

18490958339 is an equidigital number, since it uses as much as digits as its factorization.

18490958339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641565484.

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 18490958339 in words is "eighteen billion, four hundred ninety million, nine hundred fifty-eight thousand, three hundred thirty-nine".