568813788863821 has 8 divisors (see below), whose sum is σ = 599421504582144. Its totient is φ = 538695796597200.

The previous prime is 568813788863759. The next prime is 568813788863857. The reversal of 568813788863821 is 128368887318865.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-568813788863821 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 (568813788863921) 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 7 ways as a sum of consecutive naturals, for example, 122430860541 + ... + 122430865186.

It is an arithmetic number, because the mean of its divisors is an integer number (74927688072768).

Almost surely, 2^{568813788863821} is an apocalyptic number.

It is an amenable number.

568813788863821 is a deficient number, since it is larger than the sum of its proper divisors (30607715718323).

568813788863821 is a wasteful number, since it uses less digits than its factorization.

568813788863821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244861725851.

The product of its digits is 5945425920, while the sum is 82.

The spelling of 568813788863821 in words is "five hundred sixty-eight trillion, eight hundred thirteen billion, seven hundred eighty-eight million, eight hundred sixty-three thousand, eight hundred twenty-one".