680140468243 has 2 divisors, whose sum is σ = 680140468244. Its totient is φ = 680140468242.

The previous prime is 680140468211. The next prime is 680140468283. The reversal of 680140468243 is 342864041086.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680140468243 - 2⁵ = 680140468211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 680140468193 and 680140468202.

It is not a weakly prime, because it can be changed into another prime (680140468283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340070234121 + 340070234122.

It is an arithmetic number, because the mean of its divisors is an integer number (340070234122).

Almost surely, 2^680140468243 is an apocalyptic number.

680140468243 is a deficient number, since it is larger than the sum of its proper divisors (1).

680140468243 is an equidigital number, since it uses as much as digits as its factorization.

680140468243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 46.

It can be divided in two parts, 6801 and 40468243, that added together give a square (40475044 = 6362²).

The spelling of 680140468243 in words is "six hundred eighty billion, one hundred forty million, four hundred sixty-eight thousand, two hundred forty-three".