680223040993 has 2 divisors, whose sum is σ = 680223040994. Its totient is φ = 680223040992.

The previous prime is 680223040961. The next prime is 680223041011. The reversal of 680223040993 is 399040322086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672634540449 + 7588500544 = 820143^2 + 87112^2 .

It is a cyclic number.

It is not a de Polignac number, because 680223040993 - 2⁵ = 680223040961 is a prime.

It is not a weakly prime, because it can be changed into another prime (680223040933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340111520496 + 340111520497.

It is an arithmetic number, because the mean of its divisors is an integer number (340111520497).

Almost surely, 2^680223040993 is an apocalyptic number.

It is an amenable number.

680223040993 is a deficient number, since it is larger than the sum of its proper divisors (1).

680223040993 is an equidigital number, since it uses as much as digits as its factorization.

680223040993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 680223040993 in words is "six hundred eighty billion, two hundred twenty-three million, forty thousand, nine hundred ninety-three".