268664885 has 8 divisors (see below), whose sum is σ = 323499960. Its totient is φ = 214197184.

The previous prime is 268664867. The next prime is 268664917. The reversal of 268664885 is 588466862.

It can be written as a sum of positive squares in 4 ways, for example, as 42523441 + 226141444 = 6521^2 + 15038^2 .

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 268664885 - 2²⁶ = 201556021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90230 + ... + 93159.

It is an arithmetic number, because the mean of its divisors is an integer number (40437495).

Almost surely, 2^268664885 is an apocalyptic number.

It is an amenable number.

268664885 is a deficient number, since it is larger than the sum of its proper divisors (54835075).

268664885 is a wasteful number, since it uses less digits than its factorization.

268664885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183687.

The product of its digits is 4423680, while the sum is 53.

The square root of 268664885 is about 16391.0001220182. Note that the first 3 decimals coincide. The cubic root of 268664885 is about 645.2633061538.

The spelling of 268664885 in words is "two hundred sixty-eight million, six hundred sixty-four thousand, eight hundred eighty-five".