18201019304 has 16 divisors (see below), whose sum is σ = 36752058420. Its totient is φ = 8400470400.

The previous prime is 18201019301. The next prime is 18201019313. The reversal of 18201019304 is 40391010281.

It can be written as a sum of positive squares in 2 ways, for example, as 15277454404 + 2923564900 = 123602^2 + 54070^2 .

It is not an unprimeable number, because it can be changed into a prime (18201019301) 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 3 ways as a sum of consecutive naturals, for example, 87504797 + ... + 87505004.

Almost surely, 2^18201019304 is an apocalyptic number.

It is an amenable number.

18201019304 is an abundant number, since it is smaller than the sum of its proper divisors (18551039116).

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

18201019304 is a wasteful number, since it uses less digits than its factorization.

18201019304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175009820 (or 175009816 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 18201019304 its reverse (40391010281), we get a palindrome (58592029585).

The spelling of 18201019304 in words is "eighteen billion, two hundred one million, nineteen thousand, three hundred four".