18484255646224 has 15 divisors (see below), whose sum is σ = 35813278634413. Its totient is φ = 9242119224448.

The previous prime is 18484255646189. The next prime is 18484255646231. The reversal of 18484255646224 is 42264655248481.

The square root of 18484255646224 is 4299332.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17955389264400 + 528866381824 = 4237380^2 + 727232^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16659912 + ... + 17734744.

Almost surely, 2^{18484255646224} is an apocalyptic number.

18484255646224 is the 4299332-nd square number.

It is an amenable number.

18484255646224 is a deficient number, since it is larger than the sum of its proper divisors (17329022988189).

18484255646224 is an frugal number, since it uses more digits than its factorization.

18484255646224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149674 (or 1074835 counting only the distinct ones).

The product of its digits is 117964800, while the sum is 61.

The spelling of 18484255646224 in words is "eighteen trillion, four hundred eighty-four billion, two hundred fifty-five million, six hundred forty-six thousand, two hundred twenty-four".