16682747693 has 2 divisors, whose sum is σ = 16682747694. Its totient is φ = 16682747692.

The previous prime is 16682747671. The next prime is 16682747759. The reversal of 16682747693 is 39674728661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10794794404 + 5887953289 = 103898^2 + 76733^2 .

It is a cyclic number.

It is not a de Polignac number, because 16682747693 - 2¹⁰ = 16682746669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16682747663) by changing a digit.

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 as a sum of consecutive naturals, namely, 8341373846 + 8341373847.

It is an arithmetic number, because the mean of its divisors is an integer number (8341373847).

Almost surely, 2^16682747693 is an apocalyptic number.

It is an amenable number.

16682747693 is a deficient number, since it is larger than the sum of its proper divisors (1).

16682747693 is an equidigital number, since it uses as much as digits as its factorization.

16682747693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18289152, while the sum is 59.

The spelling of 16682747693 in words is "sixteen billion, six hundred eighty-two million, seven hundred forty-seven thousand, six hundred ninety-three".