4461375221 has 2 divisors, whose sum is σ = 4461375222. Its totient is φ = 4461375220.

The previous prime is 4461375151. The next prime is 4461375227. The reversal of 4461375221 is 1225731644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4391050225 + 70324996 = 66265^2 + 8386^2 .

It is a cyclic number.

It is not a de Polignac number, because 4461375221 - 2³⁰ = 3387633397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4461375227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230687610 + 2230687611.

It is an arithmetic number, because the mean of its divisors is an integer number (2230687611).

Almost surely, 2^4461375221 is an apocalyptic number.

It is an amenable number.

4461375221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4461375221 is an equidigital number, since it uses as much as digits as its factorization.

4461375221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 4461375221 is about 66793.5267896523. The cubic root of 4461375221 is about 1646.2264817268.

The spelling of 4461375221 in words is "four billion, four hundred sixty-one million, three hundred seventy-five thousand, two hundred twenty-one".