568304917128 has 240 divisors, whose sum is σ = 1809205162380. Its totient is φ = 165658846464.

The previous prime is 568304917127. The next prime is 568304917139. The reversal of 568304917128 is 821719403865.

568304917128 is a `hidden beast` number, since 5 + 6 + 83 + 0 + 491 + 71 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 560458855044 + 7846062084 = 748638^2 + 88578^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (568304917121) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2947626 + ... + 3134502.

It is a 1-persistent number, because it is pandigital, but 2⋅568304917128 = 1136609834256 is not.

Almost surely, 2^568304917128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568304917128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904602581190).

568304917128 is an abundant number, since it is smaller than the sum of its proper divisors (1240900245252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

568304917128 is a wasteful number, since it uses less digits than its factorization.

568304917128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186946 (or 186914 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 568304917128 in words is "five hundred sixty-eight billion, three hundred four million, nine hundred seventeen thousand, one hundred twenty-eight".