6875779189 has 2 divisors, whose sum is σ = 6875779190. Its totient is φ = 6875779188.

The previous prime is 6875779159. The next prime is 6875779193. The reversal of 6875779189 is 9819775786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6211016100 + 664763089 = 78810^2 + 25783^2 .

It is a cyclic number.

It is not a de Polignac number, because 6875779189 - 2⁷ = 6875779061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6875779159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3437889594 + 3437889595.

It is an arithmetic number, because the mean of its divisors is an integer number (3437889595).

Almost surely, 2^6875779189 is an apocalyptic number.

It is an amenable number.

6875779189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6875779189 is an equidigital number, since it uses as much as digits as its factorization.

6875779189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 67.

The square root of 6875779189 is about 82920.3183122207. The cubic root of 6875779189 is about 1901.5480632725.

The spelling of 6875779189 in words is "six billion, eight hundred seventy-five million, seven hundred seventy-nine thousand, one hundred eighty-nine".