268568756668 has 12 divisors (see below), whose sum is σ = 470064580272. Its totient is φ = 134264590880.

The previous prime is 268568756653. The next prime is 268568756717. The reversal of 268568756668 is 866657865862.

It is a self number, because there is not a number n which added to its sum of digits gives 268568756668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4916305 + ... + 4970632.

It is an arithmetic number, because the mean of its divisors is an integer number (39172048356).

Almost surely, 2^268568756668 is an apocalyptic number.

It is an amenable number.

268568756668 is a deficient number, since it is larger than the sum of its proper divisors (201495823604).

268568756668 is a wasteful number, since it uses less digits than its factorization.

268568756668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893732 (or 9893730 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 73.

The spelling of 268568756668 in words is "two hundred sixty-eight billion, five hundred sixty-eight million, seven hundred fifty-six thousand, six hundred sixty-eight".