268869866 has 4 divisors (see below), whose sum is σ = 403304802. Its totient is φ = 134434932.

The previous prime is 268869857. The next prime is 268869899. The reversal of 268869866 is 668968862.

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

It can be written as a sum of positive squares in only one way, i.e., 174372025 + 94497841 = 13205^2 + 9721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67217465 + ... + 67217468.

Almost surely, 2^268869866 is an apocalyptic number.

268869866 is a deficient number, since it is larger than the sum of its proper divisors (134434936).

268869866 is a wasteful number, since it uses less digits than its factorization.

268869866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134434935.

The product of its digits is 11943936, while the sum is 59.

The square root of 268869866 is about 16397.2517819298. The cubic root of 268869866 is about 645.4273681523.

The spelling of 268869866 in words is "two hundred sixty-eight million, eight hundred sixty-nine thousand, eight hundred sixty-six".