1680850019 has 2 divisors, whose sum is σ = 1680850020. Its totient is φ = 1680850018.

The previous prime is 1680849923. The next prime is 1680850021. The reversal of 1680850019 is 9100580861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1680850019 - 2²⁴ = 1664072803 is a prime.

It is a super-2 number, since 2×1680850019² = 5650513572744600722, which contains 22 as substring.

Together with 1680850021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1680850819) 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, 840425009 + 840425010.

It is an arithmetic number, because the mean of its divisors is an integer number (840425010).

Almost surely, 2^1680850019 is an apocalyptic number.

1680850019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680850019 is an equidigital number, since it uses as much as digits as its factorization.

1680850019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 1680850019 is about 40998.1709226156. The cubic root of 1680850019 is about 1188.9848506604.

The spelling of 1680850019 in words is "one billion, six hundred eighty million, eight hundred fifty thousand, nineteen".