1680338063 has 2 divisors, whose sum is σ = 1680338064. Its totient is φ = 1680338062.

The previous prime is 1680338003. The next prime is 1680338083. The reversal of 1680338063 is 3608330861.

It is a strong prime.

It is an emirp because it is prime and its reverse (3608330861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1680338063 - 2²⁰ = 1679289487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1680338003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840169031 + 840169032.

It is an arithmetic number, because the mean of its divisors is an integer number (840169032).

Almost surely, 2^1680338063 is an apocalyptic number.

1680338063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680338063 is an equidigital number, since it uses as much as digits as its factorization.

1680338063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1680338063 is about 40991.9268027254. The cubic root of 1680338063 is about 1188.8641240970.

The spelling of 1680338063 in words is "one billion, six hundred eighty million, three hundred thirty-eight thousand, sixty-three".