268663886 has 16 divisors (see below), whose sum is σ = 433699920. Its totient is φ = 124356480.

The previous prime is 268663877. The next prime is 268663909. The reversal of 268663886 is 688366862.

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, 62696 + ... + 66843.

It is an arithmetic number, because the mean of its divisors is an integer number (27106245).

Almost surely, 2^268663886 is an apocalyptic number.

268663886 is a deficient number, since it is larger than the sum of its proper divisors (165036034).

268663886 is a wasteful number, since it uses less digits than its factorization.

268663886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129619.

The product of its digits is 3981312, while the sum is 53.

The square root of 268663886 is about 16390.9696479494. The cubic root of 268663886 is about 645.2625063733.

The spelling of 268663886 in words is "two hundred sixty-eight million, six hundred sixty-three thousand, eight hundred eighty-six".