18343674263 has 2 divisors, whose sum is σ = 18343674264. Its totient is φ = 18343674262.

The previous prime is 18343674253. The next prime is 18343674343. The reversal of 18343674263 is 36247634381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18343674263 - 2¹⁸ = 18343412119 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 (18343674253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9171837131 + 9171837132.

It is an arithmetic number, because the mean of its divisors is an integer number (9171837132).

Almost surely, 2^18343674263 is an apocalyptic number.

18343674263 is a deficient number, since it is larger than the sum of its proper divisors (1).

18343674263 is an equidigital number, since it uses as much as digits as its factorization.

18343674263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 47.

The spelling of 18343674263 in words is "eighteen billion, three hundred forty-three million, six hundred seventy-four thousand, two hundred sixty-three".