22450844447 has 4 divisors (see below), whose sum is σ = 22453234416. Its totient is φ = 22448454480.

The previous prime is 22450844443. The next prime is 22450844483. The reversal of 22450844447 is 74444805422.

It is a happy number.

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 22450844447 - 2² = 22450844443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22450844398 and 22450844407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450844441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180838 + ... + 1199699.

It is an arithmetic number, because the mean of its divisors is an integer number (5613308604).

Almost surely, 2^22450844447 is an apocalyptic number.

22450844447 is a deficient number, since it is larger than the sum of its proper divisors (2389969).

22450844447 is an equidigital number, since it uses as much as digits as its factorization.

22450844447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389968.

The product of its (nonzero) digits is 1146880, while the sum is 44.

The spelling of 22450844447 in words is "twenty-two billion, four hundred fifty million, eight hundred forty-four thousand, four hundred forty-seven".