268906837759 has 8 divisors (see below), whose sum is σ = 323496947840. Its totient is φ = 218360439576.

The previous prime is 268906837747. The next prime is 268906837769. The reversal of 268906837759 is 957738609862.

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

It is a cyclic number.

It is not a de Polignac number, because 268906837759 - 2²¹ = 268904740607 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 (268906837729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010927829 + ... + 1010928094.

It is an arithmetic number, because the mean of its divisors is an integer number (40437118480).

Almost surely, 2^268906837759 is an apocalyptic number.

268906837759 is a deficient number, since it is larger than the sum of its proper divisors (54590110081).

268906837759 is a wasteful number, since it uses less digits than its factorization.

268906837759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021855949.

The product of its (nonzero) digits is 274337280, while the sum is 70.

The spelling of 268906837759 in words is "two hundred sixty-eight billion, nine hundred six million, eight hundred thirty-seven thousand, seven hundred fifty-nine".