18886845684 has 48 divisors (see below), whose sum is σ = 51002470400. Its totient is φ = 5327932896.

The previous prime is 18886845643. The next prime is 18886845713. The reversal of 18886845684 is 48654868881.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1416424 + ... + 1429695.

Almost surely, 2^18886845684 is an apocalyptic number.

18886845684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18886845684 is an abundant number, since it is smaller than the sum of its proper divisors (32115624716).

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

18886845684 is a wasteful number, since it uses less digits than its factorization.

18886845684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846212 (or 2846210 counting only the distinct ones).

The product of its digits is 94371840, while the sum is 66.

The spelling of 18886845684 in words is "eighteen billion, eight hundred eighty-six million, eight hundred forty-five thousand, six hundred eighty-four".