22568681047 has 4 divisors (see below), whose sum is σ = 24620379336. Its totient is φ = 20516982760.

The previous prime is 22568681029. The next prime is 22568681087. The reversal of 22568681047 is 74018686522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22568681047 - 2³¹ = 20421197399 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22568681087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025849128 + ... + 1025849149.

It is an arithmetic number, because the mean of its divisors is an integer number (6155094834).

Almost surely, 2^22568681047 is an apocalyptic number.

22568681047 is a deficient number, since it is larger than the sum of its proper divisors (2051698289).

22568681047 is a wasteful number, since it uses less digits than its factorization.

22568681047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051698288.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 22568681047 in words is "twenty-two billion, five hundred sixty-eight million, six hundred eighty-one thousand, forty-seven".