68086646268641 has 16 divisors (see below), whose sum is σ = 91417035550848. Its totient is φ = 48973411900800.

The previous prime is 68086646268637. The next prime is 68086646268647. The reversal of 68086646268641 is 14686264668086.

It is a cyclic number.

It is not a de Polignac number, because 68086646268641 - 2² = 68086646268637 is a prime.

It is a super-2 number, since 2×68086646268641² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68086646268647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34009312820 + ... + 34009314821.

It is an arithmetic number, because the mean of its divisors is an integer number (5713564721928).

Almost surely, 2^{68086646268641} is an apocalyptic number.

It is an amenable number.

68086646268641 is a deficient number, since it is larger than the sum of its proper divisors (23330389282207).

68086646268641 is a wasteful number, since it uses less digits than its factorization.

68086646268641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68018627672.

The product of its (nonzero) digits is 764411904, while the sum is 71.

The spelling of 68086646268641 in words is "sixty-eight trillion, eighty-six billion, six hundred forty-six million, two hundred sixty-eight thousand, six hundred forty-one".