67668886676 has 6 divisors (see below), whose sum is σ = 118420551690. Its totient is φ = 33834443336.

The previous prime is 67668886651. The next prime is 67668886679.

67668886676 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 45326410000 + 22342476676 = 212900^2 + 149474^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67668886679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8458610831 + ... + 8458610838.

It is an arithmetic number, because the mean of its divisors is an integer number (19736758615).

Almost surely, 2^67668886676 is an apocalyptic number.

It is an amenable number.

67668886676 is a deficient number, since it is larger than the sum of its proper divisors (50751665014).

67668886676 is a wasteful number, since it uses less digits than its factorization.

67668886676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16917221673 (or 16917221671 counting only the distinct ones).

The product of its digits is 1170505728, while the sum is 74.

The spelling of 67668886676 in words is "sixty-seven billion, six hundred sixty-eight million, eight hundred eighty-six thousand, six hundred seventy-six".