224717485639709 has 2 divisors, whose sum is σ = 224717485639710. Its totient is φ = 224717485639708.

The previous prime is 224717485639679. The next prime is 224717485639711. The reversal of 224717485639709 is 907936584717422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162878088016900 + 61839397622809 = 12762370^2 + 7863803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224717485639709 is a prime.

Together with 224717485639711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224717485639109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112358742819854 + 112358742819855.

It is an arithmetic number, because the mean of its divisors is an integer number (112358742819855).

It is a 1-persistent number, because it is pandigital, but 2⋅224717485639709 = 449434971279418 is not.

Almost surely, 2^{224717485639709} is an apocalyptic number.

It is an amenable number.

224717485639709 is a deficient number, since it is larger than the sum of its proper divisors (1).

224717485639709 is an equidigital number, since it uses as much as digits as its factorization.

224717485639709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280240640, while the sum is 74.

The spelling of 224717485639709 in words is "two hundred twenty-four trillion, seven hundred seventeen billion, four hundred eighty-five million, six hundred thirty-nine thousand, seven hundred nine".