18389026086 has 16 divisors (see below), whose sum is σ = 36800929200. Its totient is φ = 6125862528.

The previous prime is 18389026069. The next prime is 18389026127. The reversal of 18389026086 is 68062098381.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 942751 + ... + 962058.

It is an arithmetic number, because the mean of its divisors is an integer number (2300058075).

Almost surely, 2^18389026086 is an apocalyptic number.

18389026086 is an abundant number, since it is smaller than the sum of its proper divisors (18411903114).

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

18389026086 is a wasteful number, since it uses less digits than its factorization.

18389026086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906423.

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 18389026086 in words is "eighteen billion, three hundred eighty-nine million, twenty-six thousand, eighty-six".