18284488223 has 2 divisors, whose sum is σ = 18284488224. Its totient is φ = 18284488222.

The previous prime is 18284488219. The next prime is 18284488267. The reversal of 18284488223 is 32288448281.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32288448281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18284488223 - 2² = 18284488219 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18284488723) 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, 9142244111 + 9142244112.

It is an arithmetic number, because the mean of its divisors is an integer number (9142244112).

Almost surely, 2^18284488223 is an apocalyptic number.

18284488223 is a deficient number, since it is larger than the sum of its proper divisors (1).

18284488223 is an equidigital number, since it uses as much as digits as its factorization.

18284488223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1572864, while the sum is 50.

The spelling of 18284488223 in words is "eighteen billion, two hundred eighty-four million, four hundred eighty-eight thousand, two hundred twenty-three".