18586086111 has 24 divisors (see below), whose sum is σ = 28436138640. Its totient is φ = 11657607936.

The previous prime is 18586086107. The next prime is 18586086119. The reversal of 18586086111 is 11168068581.

It is a happy number.

18586086111 is a `hidden beast` number, since 1 + 8 + 586 + 0 + 8 + 61 + 1 + 1 = 666.

It is not a de Polignac number, because 18586086111 - 2² = 18586086107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18586086119) 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 23 ways as a sum of consecutive naturals, for example, 429001 + ... + 470333.

It is an arithmetic number, because the mean of its divisors is an integer number (1184839110).

Almost surely, 2^18586086111 is an apocalyptic number.

18586086111 is a deficient number, since it is larger than the sum of its proper divisors (9850052529).

18586086111 is a wasteful number, since it uses less digits than its factorization.

18586086111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44295 (or 44292 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The spelling of 18586086111 in words is "eighteen billion, five hundred eighty-six million, eighty-six thousand, one hundred eleven".