218388234299 has 2 divisors, whose sum is σ = 218388234300. Its totient is φ = 218388234298.

The previous prime is 218388234221. The next prime is 218388234331. The reversal of 218388234299 is 992432883812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218388234299 - 2¹⁶ = 218388168763 is a prime.

It is not a weakly prime, because it can be changed into another prime (218388234599) 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, 109194117149 + 109194117150.

It is an arithmetic number, because the mean of its divisors is an integer number (109194117150).

Almost surely, 2^218388234299 is an apocalyptic number.

218388234299 is a deficient number, since it is larger than the sum of its proper divisors (1).

218388234299 is an equidigital number, since it uses as much as digits as its factorization.

218388234299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11943936, while the sum is 59.

The spelling of 218388234299 in words is "two hundred eighteen billion, three hundred eighty-eight million, two hundred thirty-four thousand, two hundred ninety-nine".