18112686685 has 8 divisors (see below), whose sum is σ = 22010353920. Its totient is φ = 14306729424.

The previous prime is 18112686679. The next prime is 18112686689. The reversal of 18112686685 is 58668621181.

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

It is a cyclic number.

It is not a de Polignac number, because 18112686685 - 2⁹ = 18112686173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18112686689) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22927057 + ... + 22927846.

It is an arithmetic number, because the mean of its divisors is an integer number (2751294240).

Almost surely, 2^18112686685 is an apocalyptic number.

It is an amenable number.

18112686685 is a deficient number, since it is larger than the sum of its proper divisors (3897667235).

18112686685 is an equidigital number, since it uses as much as digits as its factorization.

18112686685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45854987.

The product of its digits is 1105920, while the sum is 52.

The spelling of 18112686685 in words is "eighteen billion, one hundred twelve million, six hundred eighty-six thousand, six hundred eighty-five".