18026882365 has 12 divisors (see below), whose sum is σ = 22906317564. Its totient is φ = 13572249984.

The previous prime is 18026882351. The next prime is 18026882381. The reversal of 18026882365 is 56328862081.

It can be written as a sum of positive squares in 2 ways, for example, as 10391967481 + 7634914884 = 101941^2 + 87378^2 .

It is not a de Polignac number, because 18026882365 - 2⁵ = 18026882333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1230574 + ... + 1245136.

It is an arithmetic number, because the mean of its divisors is an integer number (1908859797).

Almost surely, 2^18026882365 is an apocalyptic number.

It is an amenable number.

18026882365 is a deficient number, since it is larger than the sum of its proper divisors (4879435199).

18026882365 is an frugal number, since it uses more digits than its factorization.

18026882365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29148 (or 14585 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 18026882365 in words is "eighteen billion, twenty-six million, eight hundred eighty-two thousand, three hundred sixty-five".