561132326189 has 2 divisors, whose sum is σ = 561132326190. Its totient is φ = 561132326188.

The previous prime is 561132326179. The next prime is 561132326231. The reversal of 561132326189 is 981623231165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531853694089 + 29278632100 = 729283^2 + 171110^2 .

It is a cyclic number.

It is not a de Polignac number, because 561132326189 - 2³² = 556837358893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561132326159) 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 as a sum of consecutive naturals, namely, 280566163094 + 280566163095.

It is an arithmetic number, because the mean of its divisors is an integer number (280566163095).

Almost surely, 2^561132326189 is an apocalyptic number.

It is an amenable number.

561132326189 is a deficient number, since it is larger than the sum of its proper divisors (1).

561132326189 is an equidigital number, since it uses as much as digits as its factorization.

561132326189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 47.

The spelling of 561132326189 in words is "five hundred sixty-one billion, one hundred thirty-two million, three hundred twenty-six thousand, one hundred eighty-nine".