18343330933 has 2 divisors, whose sum is σ = 18343330934. Its totient is φ = 18343330932.

The previous prime is 18343330903. The next prime is 18343330961. The reversal of 18343330933 is 33903334381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18332618404 + 10712529 = 135398^2 + 3273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18343330933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18343330903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9171665466 + 9171665467.

It is an arithmetic number, because the mean of its divisors is an integer number (9171665467).

Almost surely, 2^18343330933 is an apocalyptic number.

It is an amenable number.

18343330933 is a deficient number, since it is larger than the sum of its proper divisors (1).

18343330933 is an equidigital number, since it uses as much as digits as its factorization.

18343330933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 40.

The spelling of 18343330933 in words is "eighteen billion, three hundred forty-three million, three hundred thirty thousand, nine hundred thirty-three".