568661482803887 has 4 divisors (see below), whose sum is σ = 620357981240616. Its totient is φ = 516964984367160.

The previous prime is 568661482803881. The next prime is 568661482803889. The reversal of 568661482803887 is 788308284166865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 568661482803887 - 2²² = 568661478609583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568661482803881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25848249218348 + ... + 25848249218369.

It is an arithmetic number, because the mean of its divisors is an integer number (155089495310154).

Almost surely, 2^{568661482803887} is an apocalyptic number.

568661482803887 is a deficient number, since it is larger than the sum of its proper divisors (51696498436729).

568661482803887 is a wasteful number, since it uses less digits than its factorization.

568661482803887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51696498436728.

The product of its (nonzero) digits is 5945425920, while the sum is 80.

The spelling of 568661482803887 in words is "five hundred sixty-eight trillion, six hundred sixty-one billion, four hundred eighty-two million, eight hundred three thousand, eight hundred eighty-seven".