68200668688 has 10 divisors (see below), whose sum is σ = 132138795614. Its totient is φ = 34100334336.

The previous prime is 68200668677. The next prime is 68200668691. The reversal of 68200668688 is 88686600286.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55983345664 + 12217323024 = 236608^2 + 110532^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2131270881 + ... + 2131270912.

Almost surely, 2^68200668688 is an apocalyptic number.

It is an amenable number.

68200668688 is a deficient number, since it is larger than the sum of its proper divisors (63938126926).

68200668688 is a wasteful number, since it uses less digits than its factorization.

68200668688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262541801 (or 4262541795 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 68200668688 in words is "sixty-eight billion, two hundred million, six hundred sixty-eight thousand, six hundred eighty-eight".