22193447744 has 84 divisors (see below), whose sum is σ = 48978176364. Its totient is φ = 9966108672.

The previous prime is 22193447719. The next prime is 22193447767. The reversal of 22193447744 is 44774439122.

It can be written as a sum of positive squares in 6 ways, for example, as 5881049344 + 16312398400 = 76688^2 + 127720^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372464 + ... + 427920.

Almost surely, 2^22193447744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22193447744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24489088182).

22193447744 is an abundant number, since it is smaller than the sum of its proper divisors (26784728620).

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

22193447744 is a wasteful number, since it uses less digits than its factorization.

22193447744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55532 (or 55509 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The spelling of 22193447744 in words is "twenty-two billion, one hundred ninety-three million, four hundred forty-seven thousand, seven hundred forty-four".