268965611 has 4 divisors (see below), whose sum is σ = 280659792. Its totient is φ = 257271432.

The previous prime is 268965607. The next prime is 268965637. The reversal of 268965611 is 116569862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116569862 = 2 ⋅58284931.

It is a cyclic number.

It is not a de Polignac number, because 268965611 - 2² = 268965607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268965911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5847056 + ... + 5847101.

It is an arithmetic number, because the mean of its divisors is an integer number (70164948).

Almost surely, 2^268965611 is an apocalyptic number.

268965611 is a deficient number, since it is larger than the sum of its proper divisors (11694181).

268965611 is a wasteful number, since it uses less digits than its factorization.

268965611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11694180.

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

The square root of 268965611 is about 16400.1710661810. The cubic root of 268965611 is about 645.5039716414.

The spelling of 268965611 in words is "two hundred sixty-eight million, nine hundred sixty-five thousand, six hundred eleven".