18109682 has 8 divisors (see below), whose sum is σ = 27184896. Its totient is φ = 9048052.

The previous prime is 18109681. The next prime is 18109691. The reversal of 18109682 is 28690181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×18109682³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (18109681) 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, 1163 + ... + 6129.

It is an arithmetic number, because the mean of its divisors is an integer number (3398112).

Almost surely, 2^18109682 is an apocalyptic number.

18109682 is a deficient number, since it is larger than the sum of its proper divisors (9075214).

18109682 is a wasteful number, since it uses less digits than its factorization.

18109682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 18109682 is about 4255.5472033570. The cubic root of 18109682 is about 262.6053732659.

The spelling of 18109682 in words is "eighteen million, one hundred nine thousand, six hundred eighty-two".