18827956223 has 2 divisors, whose sum is σ = 18827956224. Its totient is φ = 18827956222.

The previous prime is 18827956097. The next prime is 18827956261. The reversal of 18827956223 is 32265972881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18827956223 - 2¹⁴ = 18827939839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18827956283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9413978111 + 9413978112.

It is an arithmetic number, because the mean of its divisors is an integer number (9413978112).

Almost surely, 2^18827956223 is an apocalyptic number.

18827956223 is a deficient number, since it is larger than the sum of its proper divisors (1).

18827956223 is an equidigital number, since it uses as much as digits as its factorization.

18827956223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 53.

The spelling of 18827956223 in words is "eighteen billion, eight hundred twenty-seven million, nine hundred fifty-six thousand, two hundred twenty-three".