268568077 has 4 divisors (see below), whose sum is σ = 268820380. Its totient is φ = 268315776.

The previous prime is 268568063. The next prime is 268568099. The reversal of 268568077 is 770865862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129823236 + 138744841 = 11394^2 + 11779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268568077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268568077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268568017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124548 + ... + 126685.

It is an arithmetic number, because the mean of its divisors is an integer number (67205095).

Almost surely, 2^268568077 is an apocalyptic number.

It is an amenable number.

268568077 is a deficient number, since it is larger than the sum of its proper divisors (252303).

268568077 is a wasteful number, since it uses less digits than its factorization.

268568077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252302.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 268568077 is about 16388.0467719616. The cubic root of 268568077 is about 645.1857942819.

The spelling of 268568077 in words is "two hundred sixty-eight million, five hundred sixty-eight thousand, seventy-seven".