18323141768 has 64 divisors (see below), whose sum is σ = 35891760960. Its totient is φ = 8761648896.

The previous prime is 18323141731. The next prime is 18323141783. The reversal of 18323141768 is 86714132381.

It is a Cunningham number, because it is equal to 135363²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14347946 + ... + 14349222.

It is an arithmetic number, because the mean of its divisors is an integer number (560808765).

Almost surely, 2^18323141768 is an apocalyptic number.

It is an amenable number.

18323141768 is a deficient number, since it is larger than the sum of its proper divisors (17568619192).

18323141768 is a wasteful number, since it uses less digits than its factorization.

18323141768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166 (or 2162 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The spelling of 18323141768 in words is "eighteen billion, three hundred twenty-three million, one hundred forty-one thousand, seven hundred sixty-eight".