22875660891 has 6 divisors (see below), whose sum is σ = 33042621300. Its totient is φ = 15250440588.

The previous prime is 22875660877. The next prime is 22875660971. The reversal of 22875660891 is 19806657822.

22875660891 is a `hidden beast` number, since 2 + 28 + 7 + 5 + 6 + 608 + 9 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-22875660891 is a prime.

It is a super-2 number, since 2×22875660891² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22875660851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270870041 + ... + 1270870058.

It is an arithmetic number, because the mean of its divisors is an integer number (5507103550).

Almost surely, 2^22875660891 is an apocalyptic number.

22875660891 is a deficient number, since it is larger than the sum of its proper divisors (10166960409).

22875660891 is a wasteful number, since it uses less digits than its factorization.

22875660891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541740105 (or 2541740102 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 22875660891 in words is "twenty-two billion, eight hundred seventy-five million, six hundred sixty thousand, eight hundred ninety-one".