568319138 has 8 divisors (see below), whose sum is σ = 852652332. Its totient is φ = 284101696.

The previous prime is 568319137. The next prime is 568319183. The reversal of 568319138 is 831913865.

It can be written as a sum of positive squares in 2 ways, for example, as 559180609 + 9138529 = 23647^2 + 3023^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (568319137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15395 + ... + 37062.

Almost surely, 2^568319138 is an apocalyptic number.

568319138 is a deficient number, since it is larger than the sum of its proper divisors (284333194).

568319138 is a wasteful number, since it uses less digits than its factorization.

568319138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57876.

The product of its digits is 155520, while the sum is 44.

The square root of 568319138 is about 23839.4450019291. The cubic root of 568319138 is about 828.3186255739.

The spelling of 568319138 in words is "five hundred sixty-eight million, three hundred nineteen thousand, one hundred thirty-eight".