22528996446784 has 63 divisors (see below), whose sum is σ = 46197039657171. Its totient is φ = 10900557736320.

The previous prime is 22528996446763. The next prime is 22528996446787. The reversal of 22528996446784 is 48764469982522.

It is a happy number.

The square root of 22528996446784 is 4746472.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22528996446784.

It is not an unprimeable number, because it can be changed into a prime (22528996446787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1177115487 + ... + 1177134625.

Almost surely, 2^{22528996446784} is an apocalyptic number.

22528996446784 is the 4746472-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22528996446784

22528996446784 is an abundant number, since it is smaller than the sum of its proper divisors (23668043210387).

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

22528996446784 is an frugal number, since it uses more digits than its factorization.

22528996446784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38352 (or 19172 counting only the distinct ones).

The product of its digits is 3344302080, while the sum is 76.

The spelling of 22528996446784 in words is "twenty-two trillion, five hundred twenty-eight billion, nine hundred ninety-six million, four hundred forty-six thousand, seven hundred eighty-four".