22257896189 has 4 divisors (see below), whose sum is σ = 22265879580. Its totient is φ = 22249912800.

The previous prime is 22257896183. The next prime is 22257896203. The reversal of 22257896189 is 98169875222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19579005625 + 2678890564 = 139925^2 + 51758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22257896189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22257896183) 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, 3987512 + ... + 3993089.

It is an arithmetic number, because the mean of its divisors is an integer number (5566469895).

Almost surely, 2^22257896189 is an apocalyptic number.

It is an amenable number.

22257896189 is a deficient number, since it is larger than the sum of its proper divisors (7983391).

22257896189 is an equidigital number, since it uses as much as digits as its factorization.

22257896189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7983390.

The product of its digits is 8709120, while the sum is 59.

The spelling of 22257896189 in words is "twenty-two billion, two hundred fifty-seven million, eight hundred ninety-six thousand, one hundred eighty-nine".