21794224587568 has 20 divisors (see below), whose sum is σ = 42918544732768. Its totient is φ = 10718471108160.

The previous prime is 21794224587539. The next prime is 21794224587571. The reversal of 21794224587568 is 86578542249712.

It is a junction number, because it is equal to n+sod(n) for n = 21794224587497 and 21794224587506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11165073096 + ... + 11165075047.

Almost surely, 2^{21794224587568} is an apocalyptic number.

It is an amenable number.

21794224587568 is a deficient number, since it is larger than the sum of its proper divisors (21124320145200).

21794224587568 is a wasteful number, since it uses less digits than its factorization.

21794224587568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22330148212 (or 22330148206 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 70.

The spelling of 21794224587568 in words is "twenty-one trillion, seven hundred ninety-four billion, two hundred twenty-four million, five hundred eighty-seven thousand, five hundred sixty-eight".