22644135452189 has 2 divisors, whose sum is σ = 22644135452190. Its totient is φ = 22644135452188.

The previous prime is 22644135452083. The next prime is 22644135452273. The reversal of 22644135452189 is 98125453144622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12365891811289 + 10278243640900 = 3516517^2 + 3205970^2 .

It is a cyclic number.

It is not a de Polignac number, because 22644135452189 - 2¹² = 22644135448093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22644135152189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322067726094 + 11322067726095.

It is an arithmetic number, because the mean of its divisors is an integer number (11322067726095).

Almost surely, 2^{22644135452189} is an apocalyptic number.

It is an amenable number.

22644135452189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644135452189 is an equidigital number, since it uses as much as digits as its factorization.

22644135452189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16588800, while the sum is 56.

The spelling of 22644135452189 in words is "twenty-two trillion, six hundred forty-four billion, one hundred thirty-five million, four hundred fifty-two thousand, one hundred eighty-nine".