1680759473 has 2 divisors, whose sum is σ = 1680759474. Its totient is φ = 1680759472.

The previous prime is 1680759463. The next prime is 1680759511. The reversal of 1680759473 is 3749570861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1647385744 + 33373729 = 40588^2 + 5777^2 .

It is a cyclic number.

It is not a de Polignac number, because 1680759473 - 2⁸ = 1680759217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680759463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840379736 + 840379737.

It is an arithmetic number, because the mean of its divisors is an integer number (840379737).

Almost surely, 2^1680759473 is an apocalyptic number.

It is an amenable number.

1680759473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680759473 is an equidigital number, since it uses as much as digits as its factorization.

1680759473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 1680759473 is about 40997.0666389682. The cubic root of 1680759473 is about 1188.9635004002.

The spelling of 1680759473 in words is "one billion, six hundred eighty million, seven hundred fifty-nine thousand, four hundred seventy-three".