18341431327 has 2 divisors, whose sum is σ = 18341431328. Its totient is φ = 18341431326.

The previous prime is 18341431319. The next prime is 18341431331. The reversal of 18341431327 is 72313414381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18341431327 - 2³ = 18341431319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18341431307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9170715663 + 9170715664.

It is an arithmetic number, because the mean of its divisors is an integer number (9170715664).

Almost surely, 2^18341431327 is an apocalyptic number.

18341431327 is a deficient number, since it is larger than the sum of its proper divisors (1).

18341431327 is an equidigital number, since it uses as much as digits as its factorization.

18341431327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The spelling of 18341431327 in words is "eighteen billion, three hundred forty-one million, four hundred thirty-one thousand, three hundred twenty-seven".