568861024661 has 8 divisors (see below), whose sum is σ = 573114803160. Its totient is φ = 564608717568.

The previous prime is 568861024631. The next prime is 568861024663. The reversal of 568861024661 is 166420168865.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 390257586436 + 178603438225 = 624706^2 + 422615^2 .

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 568861024661 - 2²² = 568856830357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568861024663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414455 + ... + 1144331.

It is an arithmetic number, because the mean of its divisors is an integer number (71639350395).

Almost surely, 2^568861024661 is an apocalyptic number.

It is an amenable number.

568861024661 is a deficient number, since it is larger than the sum of its proper divisors (4253778499).

568861024661 is a wasteful number, since it uses less digits than its factorization.

568861024661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735703.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 568861024661 in words is "five hundred sixty-eight billion, eight hundred sixty-one million, twenty-four thousand, six hundred sixty-one".