18798355903 has 2 divisors, whose sum is σ = 18798355904. Its totient is φ = 18798355902.

The previous prime is 18798355889. The next prime is 18798355937. The reversal of 18798355903 is 30955389781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18798355903 - 2⁵ = 18798355871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18798355943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9399177951 + 9399177952.

It is an arithmetic number, because the mean of its divisors is an integer number (9399177952).

Almost surely, 2^18798355903 is an apocalyptic number.

18798355903 is a deficient number, since it is larger than the sum of its proper divisors (1).

18798355903 is an equidigital number, since it uses as much as digits as its factorization.

18798355903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 18798355903 in words is "eighteen billion, seven hundred ninety-eight million, three hundred fifty-five thousand, nine hundred three".