6091694221 has 2 divisors, whose sum is σ = 6091694222. Its totient is φ = 6091694220.

The previous prime is 6091694197. The next prime is 6091694249. The reversal of 6091694221 is 1224961906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4258998121 + 1832696100 = 65261^2 + 42810^2 .

It is a cyclic number.

It is not a de Polignac number, because 6091694221 - 2¹⁵ = 6091661453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6091694621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3045847110 + 3045847111.

It is an arithmetic number, because the mean of its divisors is an integer number (3045847111).

Almost surely, 2^6091694221 is an apocalyptic number.

It is an amenable number.

6091694221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6091694221 is an equidigital number, since it uses as much as digits as its factorization.

6091694221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 6091694221 is about 78049.3063454122. The cubic root of 6091694221 is about 1826.3304712132.

The spelling of 6091694221 in words is "six billion, ninety-one million, six hundred ninety-four thousand, two hundred twenty-one".