680273443273 has 2 divisors, whose sum is σ = 680273443274. Its totient is φ = 680273443272.

The previous prime is 680273443253. The next prime is 680273443301. The reversal of 680273443273 is 372344372086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380241189769 + 300032253504 = 616637^2 + 547752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680273443273 is a prime.

It is not a weakly prime, because it can be changed into another prime (680273443253) 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, 340136721636 + 340136721637.

It is an arithmetic number, because the mean of its divisors is an integer number (340136721637).

Almost surely, 2^680273443273 is an apocalyptic number.

It is an amenable number.

680273443273 is a deficient number, since it is larger than the sum of its proper divisors (1).

680273443273 is an equidigital number, since it uses as much as digits as its factorization.

680273443273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 680273443273 in words is "six hundred eighty billion, two hundred seventy-three million, four hundred forty-three thousand, two hundred seventy-three".