22865854844 has 12 divisors (see below), whose sum is σ = 45731709744. Its totient is φ = 9799652064.

The previous prime is 22865854801. The next prime is 22865854853. The reversal of 22865854844 is 44845856822.

22865854844 is an admirable number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22865854844.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 408318809 + ... + 408318864.

It is an arithmetic number, because the mean of its divisors is an integer number (3810975812).

Almost surely, 2^22865854844 is an apocalyptic number.

It is an amenable number.

22865854844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22865854844 is a wasteful number, since it uses less digits than its factorization.

22865854844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816637684 (or 816637682 counting only the distinct ones).

The product of its digits is 19660800, while the sum is 56.

The spelling of 22865854844 in words is "twenty-two billion, eight hundred sixty-five million, eight hundred fifty-four thousand, eight hundred forty-four".