68664824185 has 64 divisors (see below), whose sum is σ = 92875161600. Its totient is φ = 48428928000.

The previous prime is 68664824141. The next prime is 68664824191. The reversal of 68664824185 is 58142846686.

It is a happy number.

It is not a de Polignac number, because 68664824185 - 2⁷ = 68664824057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66086896 + ... + 66087934.

It is an arithmetic number, because the mean of its divisors is an integer number (1451174400).

Almost surely, 2^68664824185 is an apocalyptic number.

It is an amenable number.

68664824185 is a deficient number, since it is larger than the sum of its proper divisors (24210337415).

68664824185 is a wasteful number, since it uses less digits than its factorization.

68664824185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502.

The product of its digits is 17694720, while the sum is 58.

The spelling of 68664824185 in words is "sixty-eight billion, six hundred sixty-four million, eight hundred twenty-four thousand, one hundred eighty-five".