268664479 has 4 divisors (see below), whose sum is σ = 271272976. Its totient is φ = 266055984.

The previous prime is 268664477. The next prime is 268664483. The reversal of 268664479 is 974466862.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 268664479 - 2¹ = 268664477 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 (268664477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304094 + ... + 1304299.

It is an arithmetic number, because the mean of its divisors is an integer number (67818244).

Almost surely, 2^268664479 is an apocalyptic number.

268664479 is a deficient number, since it is larger than the sum of its proper divisors (2608497).

268664479 is a wasteful number, since it uses less digits than its factorization.

268664479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608496.

The product of its digits is 3483648, while the sum is 52.

The square root of 268664479 is about 16390.9877371683. The cubic root of 268664479 is about 645.2629811181.

The spelling of 268664479 in words is "two hundred sixty-eight million, six hundred sixty-four thousand, four hundred seventy-nine".