268646758 has 4 divisors (see below), whose sum is σ = 402970140. Its totient is φ = 134323378.

The previous prime is 268646743. The next prime is 268646759. The reversal of 268646758 is 857646862.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268646759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67161688 + ... + 67161691.

It is an arithmetic number, because the mean of its divisors is an integer number (100742535).

Almost surely, 2^268646758 is an apocalyptic number.

268646758 is a deficient number, since it is larger than the sum of its proper divisors (134323382).

268646758 is a wasteful number, since it uses less digits than its factorization.

268646758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134323381.

The product of its digits is 3870720, while the sum is 52.

The square root of 268646758 is about 16390.4471568045. The cubic root of 268646758 is about 645.2487937114.

The spelling of 268646758 in words is "two hundred sixty-eight million, six hundred forty-six thousand, seven hundred fifty-eight".