18106368086 has 4 divisors (see below), whose sum is σ = 27159552132. Its totient is φ = 9053184042.

The previous prime is 18106368083. The next prime is 18106368113. The reversal of 18106368086 is 68086360181.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18106368086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106368083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4526592020 + ... + 4526592023.

It is an arithmetic number, because the mean of its divisors is an integer number (6789888033).

Almost surely, 2^18106368086 is an apocalyptic number.

18106368086 is a deficient number, since it is larger than the sum of its proper divisors (9053184046).

18106368086 is an equidigital number, since it uses as much as digits as its factorization.

18106368086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9053184045.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 18106368086 in words is "eighteen billion, one hundred six million, three hundred sixty-eight thousand, eighty-six".