68475707686 has 16 divisors (see below), whose sum is σ = 108383637600. Its totient is φ = 32381280448.

The previous prime is 68475707669. The next prime is 68475707693. The reversal of 68475707686 is 68670757486.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8358841 + ... + 8367028.

It is an arithmetic number, because the mean of its divisors is an integer number (6773977350).

Almost surely, 2^68475707686 is an apocalyptic number.

68475707686 is a deficient number, since it is larger than the sum of its proper divisors (39907929914).

68475707686 is a wasteful number, since it uses less digits than its factorization.

68475707686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16725983.

The product of its (nonzero) digits is 94832640, while the sum is 64.

It can be divided in two parts, 68475 and 707686, that added together give a square (776161 = 881²).

The spelling of 68475707686 in words is "sixty-eight billion, four hundred seventy-five million, seven hundred seven thousand, six hundred eighty-six".