18459603839 has 2 divisors, whose sum is σ = 18459603840. Its totient is φ = 18459603838.

The previous prime is 18459603823. The next prime is 18459603847. The reversal of 18459603839 is 93830695481.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18459603839 - 2⁴ = 18459603823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18459603439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9229801919 + 9229801920.

It is an arithmetic number, because the mean of its divisors is an integer number (9229801920).

Almost surely, 2^18459603839 is an apocalyptic number.

18459603839 is a deficient number, since it is larger than the sum of its proper divisors (1).

18459603839 is an equidigital number, since it uses as much as digits as its factorization.

18459603839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 18459603839 in words is "eighteen billion, four hundred fifty-nine million, six hundred three thousand, eight hundred thirty-nine".