680026042043 has 2 divisors, whose sum is σ = 680026042044. Its totient is φ = 680026042042.

The previous prime is 680026042039. The next prime is 680026042093. The reversal of 680026042043 is 340240620086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 680026042043 - 2² = 680026042039 is a prime.

It is a super-2 number, since 2×680026042043² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 680026041994 and 680026042012.

It is not a weakly prime, because it can be changed into another prime (680026042093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340013021021 + 340013021022.

It is an arithmetic number, because the mean of its divisors is an integer number (340013021022).

Almost surely, 2^680026042043 is an apocalyptic number.

680026042043 is a deficient number, since it is larger than the sum of its proper divisors (1).

680026042043 is an equidigital number, since it uses as much as digits as its factorization.

680026042043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 680026042043 in words is "six hundred eighty billion, twenty-six million, forty-two thousand, forty-three".