268921067776 has 27 divisors (see below), whose sum is σ = 536808225163. Its totient is φ = 134456385280.

The previous prime is 268921067719. The next prime is 268921067777. The reversal of 268921067776 is 677760129862.

It is a happy number.

The square root of 268921067776 is 518576.

It is a perfect power (a square), and thus also a powerful number.

268921067776 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268921067777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8281011 + ... + 8313421.

Almost surely, 2^268921067776 is an apocalyptic number.

268921067776 is the 518576-th square number.

It is an amenable number.

268921067776 is a deficient number, since it is larger than the sum of its proper divisors (267887157387).

268921067776 is an frugal number, since it uses more digits than its factorization.

268921067776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64838 (or 32413 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 268921067776 in words is "two hundred sixty-eight billion, nine hundred twenty-one million, sixty-seven thousand, seven hundred seventy-six".