561242520713 has 16 divisors (see below), whose sum is σ = 644374241280. Its totient is φ = 478854450000.

The previous prime is 561242520697. The next prime is 561242520737. The reversal of 561242520713 is 317025242165.

It is a cyclic number.

It is not a de Polignac number, because 561242520713 - 2⁴ = 561242520697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561242520743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112588 + ... + 1536338.

It is an arithmetic number, because the mean of its divisors is an integer number (40273390080).

Almost surely, 2^561242520713 is an apocalyptic number.

It is an amenable number.

561242520713 is a deficient number, since it is larger than the sum of its proper divisors (83131720567).

561242520713 is a wasteful number, since it uses less digits than its factorization.

561242520713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424628.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 561242520713 its reverse (317025242165), we get a palindrome (878267762878).

The spelling of 561242520713 in words is "five hundred sixty-one billion, two hundred forty-two million, five hundred twenty thousand, seven hundred thirteen".