18632144327 has 2 divisors, whose sum is σ = 18632144328. Its totient is φ = 18632144326.

The previous prime is 18632144299. The next prime is 18632144351. The reversal of 18632144327 is 72344123681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18632144327 - 2⁸ = 18632144071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18632144387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9316072163 + 9316072164.

It is an arithmetic number, because the mean of its divisors is an integer number (9316072164).

Almost surely, 2^18632144327 is an apocalyptic number.

18632144327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18632144327 is an equidigital number, since it uses as much as digits as its factorization.

18632144327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The spelling of 18632144327 in words is "eighteen billion, six hundred thirty-two million, one hundred forty-four thousand, three hundred twenty-seven".