268865269 has 4 divisors (see below), whose sum is σ = 269357344. Its totient is φ = 268373196.

The previous prime is 268865243. The next prime is 268865281. The reversal of 268865269 is 962568862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 962568862 = 2 ⋅481284431.

It is a cyclic number.

It is not a de Polignac number, because 268865269 - 2⁷ = 268865141 is a prime.

It is a super-2 number, since 2×268865269² = 144577065748884722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268865209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245217 + ... + 246310.

It is an arithmetic number, because the mean of its divisors is an integer number (67339336).

Almost surely, 2^268865269 is an apocalyptic number.

It is an amenable number.

268865269 is a deficient number, since it is larger than the sum of its proper divisors (492075).

268865269 is an equidigital number, since it uses as much as digits as its factorization.

268865269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492074.

The product of its digits is 2488320, while the sum is 52.

The square root of 268865269 is about 16397.1116054017. Note that the first 3 decimals coincide. The cubic root of 268865269 is about 645.4236897352.

The spelling of 268865269 in words is "two hundred sixty-eight million, eight hundred sixty-five thousand, two hundred sixty-nine".