716681766673 has 2 divisors, whose sum is σ = 716681766674. Its totient is φ = 716681766672.

The previous prime is 716681766641. The next prime is 716681766683. The reversal of 716681766673 is 376667186617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685463117329 + 31218649344 = 827927^2 + 176688^2 .

It is a cyclic number.

It is not a de Polignac number, because 716681766673 - 2⁵ = 716681766641 is a prime.

It is a super-3 number, since 3×716681766673³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (716681766623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358340883336 + 358340883337.

It is an arithmetic number, because the mean of its divisors is an integer number (358340883337).

Almost surely, 2^716681766673 is an apocalyptic number.

It is an amenable number.

716681766673 is a deficient number, since it is larger than the sum of its proper divisors (1).

716681766673 is an equidigital number, since it uses as much as digits as its factorization.

716681766673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64012032, while the sum is 64.

The spelling of 716681766673 in words is "seven hundred sixteen billion, six hundred eighty-one million, seven hundred sixty-six thousand, six hundred seventy-three".