18032218327 has 2 divisors, whose sum is σ = 18032218328. Its totient is φ = 18032218326.

The previous prime is 18032218283. The next prime is 18032218349. The reversal of 18032218327 is 72381223081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18032218327 - 2¹⁵ = 18032185559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18032248327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016109163 + 9016109164.

It is an arithmetic number, because the mean of its divisors is an integer number (9016109164).

Almost surely, 2^18032218327 is an apocalyptic number.

18032218327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18032218327 is an equidigital number, since it uses as much as digits as its factorization.

18032218327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 18032218327 in words is "eighteen billion, thirty-two million, two hundred eighteen thousand, three hundred twenty-seven".