18943321096 has 16 divisors (see below), whose sum is σ = 40592831040. Its totient is φ = 8118566160.

The previous prime is 18943321079. The next prime is 18943321097. The reversal of 18943321096 is 69012334981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18943321097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169136740 + ... + 169136851.

It is an arithmetic number, because the mean of its divisors is an integer number (2537051940).

Almost surely, 2^18943321096 is an apocalyptic number.

It is an amenable number.

18943321096 is an abundant number, since it is smaller than the sum of its proper divisors (21649509944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18943321096 is a wasteful number, since it uses less digits than its factorization.

18943321096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338273604 (or 338273600 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 18943321096 in words is "eighteen billion, nine hundred forty-three million, three hundred twenty-one thousand, ninety-six".