68644333344686 has 16 divisors (see below), whose sum is σ = 114717029034240. Its totient is φ = 30538098005880.

The previous prime is 68644333344637. The next prime is 68644333344751.

68644333344686 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33193583756 + ... + 33193585823.

It is an arithmetic number, because the mean of its divisors is an integer number (7169814314640).

Almost surely, 2^{68644333344686} is an apocalyptic number.

68644333344686 is a deficient number, since it is larger than the sum of its proper divisors (46072695689554).

68644333344686 is a wasteful number, since it uses less digits than its factorization.

68644333344686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66387169639.

The product of its digits is 1719926784, while the sum is 68.

The spelling of 68644333344686 in words is "sixty-eight trillion, six hundred forty-four billion, three hundred thirty-three million, three hundred forty-four thousand, six hundred eighty-six".