18676502244 has 27 divisors (see below), whose sum is σ = 47212120137. Its totient is φ = 6225227424.

The previous prime is 18676502239. The next prime is 18676502261. The reversal of 18676502244 is 44220567681.

The square root of 18676502244 is 136662.

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., 16835062500 + 1841439744 = 129750^2 + 42912^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18676502244.

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 8 ways as a sum of consecutive naturals, for example, 808584 + ... + 831360.

Almost surely, 2^18676502244 is an apocalyptic number.

18676502244 is the 136662-nd square number.

It is an amenable number.

18676502244 is an abundant number, since it is smaller than the sum of its proper divisors (28535617893).

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

18676502244 is an frugal number, since it uses more digits than its factorization.

18676502244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45564 (or 22782 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 18676502244 in words is "eighteen billion, six hundred seventy-six million, five hundred two thousand, two hundred forty-four".