561648742232767 has 8 divisors (see below), whose sum is σ = 645822217187456. Its totient is φ = 478459752365592.

The previous prime is 561648742232759. The next prime is 561648742232779. The reversal of 561648742232767 is 767232247846165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561648742232767 - 2³ = 561648742232759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561648742232696 and 561648742232705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561648742232717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246121270653 + ... + 246121272934.

It is an arithmetic number, because the mean of its divisors is an integer number (80727777148432).

Almost surely, 2^{561648742232767} is an apocalyptic number.

561648742232767 is a deficient number, since it is larger than the sum of its proper divisors (84173474954689).

561648742232767 is a wasteful number, since it uses less digits than its factorization.

561648742232767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492242543757.

The product of its digits is 1137991680, while the sum is 70.

The spelling of 561648742232767 in words is "five hundred sixty-one trillion, six hundred forty-eight billion, seven hundred forty-two million, two hundred thirty-two thousand, seven hundred sixty-seven".