18144785230 has 128 divisors (see below), whose sum is σ = 39160558080. Its totient is φ = 5966231040.

The previous prime is 18144785227. The next prime is 18144785233. The reversal of 18144785230 is 3258744181.

It is an interprime number because it is at equal distance from previous prime (18144785227) and next prime (18144785233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18144785233) 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 63 ways as a sum of consecutive naturals, for example, 21940077 + ... + 21940903.

It is an arithmetic number, because the mean of its divisors is an integer number (305941860).

Almost surely, 2^18144785230 is an apocalyptic number.

18144785230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18144785230 is an abundant number, since it is smaller than the sum of its proper divisors (21015772850).

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

18144785230 is a wasteful number, since it uses less digits than its factorization.

18144785230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 18144785230 in words is "eighteen billion, one hundred forty-four million, seven hundred eighty-five thousand, two hundred thirty".