2568398743 has 8 divisors (see below), whose sum is σ = 2720295360. Its totient is φ = 2416592640.

The previous prime is 2568398737. The next prime is 2568398759. The reversal of 2568398743 is 3478938652.

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-2568398743 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 (2568398773) 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 7 ways as a sum of consecutive naturals, for example, 40923 + ... + 82531.

It is an arithmetic number, because the mean of its divisors is an integer number (340036920).

Almost surely, 2^2568398743 is an apocalyptic number.

2568398743 is a deficient number, since it is larger than the sum of its proper divisors (151896617).

2568398743 is a wasteful number, since it uses less digits than its factorization.

2568398743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45257.

The product of its digits is 8709120, while the sum is 55.

The square root of 2568398743 is about 50679.3719673005. The cubic root of 2568398743 is about 1369.4751293594.

The spelling of 2568398743 in words is "two billion, five hundred sixty-eight million, three hundred ninety-eight thousand, seven hundred forty-three".