68227565968 has 20 divisors (see below), whose sum is σ = 134357975068. Its totient is φ = 33554540160.

The previous prime is 68227565909. The next prime is 68227565969. The reversal of 68227565968 is 86956572286.

It can be written as a sum of positive squares in 2 ways, for example, as 14026138624 + 54201427344 = 118432^2 + 232812^2 .

It is not an unprimeable number, because it can be changed into a prime (68227565969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34951671 + ... + 34953622.

Almost surely, 2^68227565968 is an apocalyptic number.

It is an amenable number.

68227565968 is a deficient number, since it is larger than the sum of its proper divisors (66130409100).

68227565968 is a wasteful number, since it uses less digits than its factorization.

68227565968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69905362 (or 69905356 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 64.

The spelling of 68227565968 in words is "sixty-eight billion, two hundred twenty-seven million, five hundred sixty-five thousand, nine hundred sixty-eight".