2568988243 has 16 divisors (see below), whose sum is σ = 2738520576. Its totient is φ = 2404790080.

The previous prime is 2568988189. The next prime is 2568988249. The reversal of 2568988243 is 3428898652.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2568988243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2568988249) 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 15 ways as a sum of consecutive naturals, for example, 217980 + ... + 229462.

It is an arithmetic number, because the mean of its divisors is an integer number (171157536).

Almost surely, 2^2568988243 is an apocalyptic number.

2568988243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2568988243 is a deficient number, since it is larger than the sum of its proper divisors (169532333).

2568988243 is a wasteful number, since it uses less digits than its factorization.

2568988243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11714.

The product of its digits is 6635520, while the sum is 55.

The square root of 2568988243 is about 50685.1876093993. The cubic root of 2568988243 is about 1369.5798955209.

The spelling of 2568988243 in words is "two billion, five hundred sixty-eight million, nine hundred eighty-eight thousand, two hundred forty-three".