18314861899 has 2 divisors, whose sum is σ = 18314861900. Its totient is φ = 18314861898.

The previous prime is 18314861893. The next prime is 18314861933. The reversal of 18314861899 is 99816841381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18314861899 - 2³ = 18314861891 is a prime.

It is not a weakly prime, because it can be changed into another prime (18314861891) 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, 9157430949 + 9157430950.

It is an arithmetic number, because the mean of its divisors is an integer number (9157430950).

Almost surely, 2^18314861899 is an apocalyptic number.

18314861899 is a deficient number, since it is larger than the sum of its proper divisors (1).

18314861899 is an equidigital number, since it uses as much as digits as its factorization.

18314861899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 58.

The spelling of 18314861899 in words is "eighteen billion, three hundred fourteen million, eight hundred sixty-one thousand, eight hundred ninety-nine".