606433443821 has 2 divisors, whose sum is σ = 606433443822. Its totient is φ = 606433443820.

The previous prime is 606433443773. The next prime is 606433443839. The reversal of 606433443821 is 128344334606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561345592900 + 45087850921 = 749230^2 + 212339^2 .

It is a cyclic number.

It is not a de Polignac number, because 606433443821 - 2²⁶ = 606366334957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606433443841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303216721910 + 303216721911.

It is an arithmetic number, because the mean of its divisors is an integer number (303216721911).

Almost surely, 2^606433443821 is an apocalyptic number.

It is an amenable number.

606433443821 is a deficient number, since it is larger than the sum of its proper divisors (1).

606433443821 is an equidigital number, since it uses as much as digits as its factorization.

606433443821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 606433443821 in words is "six hundred six billion, four hundred thirty-three million, four hundred forty-three thousand, eight hundred twenty-one".