22745925845 has 4 divisors (see below), whose sum is σ = 27295111020. Its totient is φ = 18196740672.

The previous prime is 22745925821. The next prime is 22745925901. The reversal of 22745925845 is 54852954722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54852954722 = 2 ⋅27426477361.

It can be written as a sum of positive squares in 2 ways, for example, as 5794406641 + 16951519204 = 76121^2 + 130198^2 .

It is a cyclic number.

It is not a de Polignac number, because 22745925845 - 2⁶ = 22745925781 is a prime.

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, 2274592580 + ... + 2274592589.

It is an arithmetic number, because the mean of its divisors is an integer number (6823777755).

Almost surely, 2^22745925845 is an apocalyptic number.

It is an amenable number.

22745925845 is a deficient number, since it is larger than the sum of its proper divisors (4549185175).

22745925845 is an equidigital number, since it uses as much as digits as its factorization.

22745925845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549185174.

The product of its digits is 8064000, while the sum is 53.

The spelling of 22745925845 in words is "twenty-two billion, seven hundred forty-five million, nine hundred twenty-five thousand, eight hundred forty-five".