680026042093 has 2 divisors, whose sum is σ = 680026042094. Its totient is φ = 680026042092.

The previous prime is 680026042043. The next prime is 680026042121. The reversal of 680026042093 is 390240620086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 642880032804 + 37146009289 = 801798^2 + 192733^2 .

It is a cyclic number.

It is not a de Polignac number, because 680026042093 - 2¹³ = 680026033901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680026042043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340013021046 + 340013021047.

It is an arithmetic number, because the mean of its divisors is an integer number (340013021047).

Almost surely, 2^680026042093 is an apocalyptic number.

It is an amenable number.

680026042093 is a deficient number, since it is larger than the sum of its proper divisors (1).

680026042093 is an equidigital number, since it uses as much as digits as its factorization.

680026042093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 680026042093 in words is "six hundred eighty billion, twenty-six million, forty-two thousand, ninety-three".