18001876684 has 12 divisors (see below), whose sum is σ = 34367219208. Its totient is φ = 8182671200.

The previous prime is 18001876663. The next prime is 18001876727. The reversal of 18001876684 is 48667810081.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204566737 + ... + 204566824.

It is an arithmetic number, because the mean of its divisors is an integer number (2863934934).

Almost surely, 2^18001876684 is an apocalyptic number.

It is an amenable number.

18001876684 is a deficient number, since it is larger than the sum of its proper divisors (16365342524).

18001876684 is a wasteful number, since it uses less digits than its factorization.

18001876684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409133576 (or 409133574 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 18001876684 in words is "eighteen billion, one million, eight hundred seventy-six thousand, six hundred eighty-four".