18286333109 has 16 divisors (see below), whose sum is σ = 20582449920. Its totient is φ = 16103780160.

The previous prime is 18286333081. The next prime is 18286333171. The reversal of 18286333109 is 90133368281.

It is a cyclic number.

It is not a de Polignac number, because 18286333109 - 2²⁴ = 18269555893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18286333109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18286333309) 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 15 ways as a sum of consecutive naturals, for example, 152462 + ... + 244575.

It is an arithmetic number, because the mean of its divisors is an integer number (1286403120).

Almost surely, 2^18286333109 is an apocalyptic number.

It is an amenable number.

18286333109 is a deficient number, since it is larger than the sum of its proper divisors (2296116811).

18286333109 is a wasteful number, since it uses less digits than its factorization.

18286333109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397180.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 18286333109 in words is "eighteen billion, two hundred eighty-six million, three hundred thirty-three thousand, one hundred nine".