18095927864 has 96 divisors (see below), whose sum is σ = 41082894720. Its totient is φ = 7318942272.

The previous prime is 18095927849. The next prime is 18095927869. The reversal of 18095927864 is 46872959081.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18095927869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5719547 + ... + 5722709.

It is an arithmetic number, because the mean of its divisors is an integer number (427946820).

Almost surely, 2^18095927864 is an apocalyptic number.

18095927864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18095927864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20541447360).

18095927864 is an abundant number, since it is smaller than the sum of its proper divisors (22986966856).

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

18095927864 is a wasteful number, since it uses less digits than its factorization.

18095927864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 18095927864 in words is "eighteen billion, ninety-five million, nine hundred twenty-seven thousand, eight hundred sixty-four".