568431864 has 384 divisors, whose sum is σ = 2145024000. Its totient is φ = 135717120.

The previous prime is 568431859. The next prime is 568431889. The reversal of 568431864 is 468134865.

568431864 is a `hidden beast` number, since 568 + 4 + 3 + 1 + 86 + 4 = 666.

It is a super-2 number, since 2×568431864² = 646229568021028992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2378257 + ... + 2378495.

It is an arithmetic number, because the mean of its divisors is an integer number (5586000).

Almost surely, 2^568431864 is an apocalyptic number.

568431864 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 568431864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072512000).

568431864 is an abundant number, since it is smaller than the sum of its proper divisors (1576592136).

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

568431864 is a wasteful number, since it uses less digits than its factorization.

568431864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 275 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 568431864 is about 23841.8091595416. The cubic root of 568431864 is about 828.3733875708.

The spelling of 568431864 in words is "five hundred sixty-eight million, four hundred thirty-one thousand, eight hundred sixty-four".