18306000305 has 16 divisors (see below), whose sum is σ = 22771782720. Its totient is φ = 14115811392.

The previous prime is 18306000289. The next prime is 18306000337. The reversal of 18306000305 is 50300060381.

It is not a de Polignac number, because 18306000305 - 2⁴ = 18306000289 is a prime.

It is a Curzon number.

It is an unprimeable number.

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, 442595 + ... + 482184.

It is an arithmetic number, because the mean of its divisors is an integer number (1423236420).

Almost surely, 2^18306000305 is an apocalyptic number.

It is an amenable number.

18306000305 is a deficient number, since it is larger than the sum of its proper divisors (4465782415).

18306000305 is a wasteful number, since it uses less digits than its factorization.

18306000305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924928.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 18306000305 its reverse (50300060381), we get a palindrome (68606060686).

The spelling of 18306000305 in words is "eighteen billion, three hundred six million, three hundred five", and thus it is an aban number.