18988898843 has 2 divisors, whose sum is σ = 18988898844. Its totient is φ = 18988898842.

The previous prime is 18988898759. The next prime is 18988898879. The reversal of 18988898843 is 34889888981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18988898843 - 2¹⁸ = 18988636699 is a prime.

It is not a weakly prime, because it can be changed into another prime (18988898443) 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, 9494449421 + 9494449422.

It is an arithmetic number, because the mean of its divisors is an integer number (9494449422).

Almost surely, 2^18988898843 is an apocalyptic number.

18988898843 is a deficient number, since it is larger than the sum of its proper divisors (1).

18988898843 is an equidigital number, since it uses as much as digits as its factorization.

18988898843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254803968, while the sum is 74.

The spelling of 18988898843 in words is "eighteen billion, nine hundred eighty-eight million, eight hundred ninety-eight thousand, eight hundred forty-three".