561688846382267 has 2 divisors, whose sum is σ = 561688846382268. Its totient is φ = 561688846382266.

The previous prime is 561688846382207. The next prime is 561688846382269. The reversal of 561688846382267 is 762283648886165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561688846382267 - 2²⁴ = 561688829605051 is a prime.

Together with 561688846382269, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 561688846382191 and 561688846382200.

It is not a weakly prime, because it can be changed into another prime (561688846382269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280844423191133 + 280844423191134.

It is an arithmetic number, because the mean of its divisors is an integer number (280844423191134).

Almost surely, 2^{561688846382267} is an apocalyptic number.

561688846382267 is a deficient number, since it is larger than the sum of its proper divisors (1).

561688846382267 is an equidigital number, since it uses as much as digits as its factorization.

561688846382267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8918138880, while the sum is 80.

The spelling of 561688846382267 in words is "five hundred sixty-one trillion, six hundred eighty-eight billion, eight hundred forty-six million, three hundred eighty-two thousand, two hundred sixty-seven".