68317998786 has 24 divisors (see below), whose sum is σ = 148504500144. Its totient is φ = 22698486360.

The previous prime is 68317998751. The next prime is 68317998817. The reversal of 68317998786 is 68789971386.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6175980 + ... + 6187031.

It is an arithmetic number, because the mean of its divisors is an integer number (6187687506).

Almost surely, 2^68317998786 is an apocalyptic number.

68317998786 is an abundant number, since it is smaller than the sum of its proper divisors (80186501358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68317998786 is a wasteful number, since it uses less digits than its factorization.

68317998786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363326 (or 12363323 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 68317998786 in words is "sixty-eight billion, three hundred seventeen million, nine hundred ninety-eight thousand, seven hundred eighty-six".