18082270900 has 36 divisors (see below), whose sum is σ = 39488489068. Its totient is φ = 7186832640.

The previous prime is 18082270883. The next prime is 18082270901. The reversal of 18082270900 is 907228081.

It can be written as a sum of positive squares in 6 ways, for example, as 2213326116 + 15868944784 = 47046^2 + 125972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18082270900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082270901) 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 11 ways as a sum of consecutive naturals, for example, 560169 + ... + 591568.

Almost surely, 2^18082270900 is an apocalyptic number.

18082270900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18082270900 is an abundant number, since it is smaller than the sum of its proper divisors (21406218168).

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

18082270900 is a wasteful number, since it uses less digits than its factorization.

18082270900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151908 (or 1151901 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

Adding to 18082270900 its reverse (907228081), we get a palindrome (18989498981).

The spelling of 18082270900 in words is "eighteen billion, eighty-two million, two hundred seventy thousand, nine hundred".