18300001686 has 16 divisors (see below), whose sum is σ = 37378727424. Its totient is φ = 5970213224.

The previous prime is 18300001669. The next prime is 18300001691. The reversal of 18300001686 is 68610000381.

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 in 7 ways as a sum of consecutive naturals, for example, 32446530 + ... + 32447093.

It is an arithmetic number, because the mean of its divisors is an integer number (2336170464).

Almost surely, 2^18300001686 is an apocalyptic number.

18300001686 is an abundant number, since it is smaller than the sum of its proper divisors (19078725738).

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

18300001686 is a wasteful number, since it uses less digits than its factorization.

18300001686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64893675.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 18300001686 in words is "eighteen billion, three hundred million, one thousand, six hundred eighty-six".