18326313976 has 8 divisors (see below), whose sum is σ = 34361838720. Its totient is φ = 9163156984.

The previous prime is 18326313949. The next prime is 18326313991. The reversal of 18326313976 is 67931362381.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145394616 + ... + 1145394631.

It is an arithmetic number, because the mean of its divisors is an integer number (4295229840).

Almost surely, 2^18326313976 is an apocalyptic number.

It is an amenable number.

18326313976 is a deficient number, since it is larger than the sum of its proper divisors (16035524744).

18326313976 is a wasteful number, since it uses less digits than its factorization.

18326313976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290789253 (or 2290789249 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The spelling of 18326313976 in words is "eighteen billion, three hundred twenty-six million, three hundred thirteen thousand, nine hundred seventy-six".