4546221689 has 2 divisors, whose sum is σ = 4546221690. Its totient is φ = 4546221688.

The previous prime is 4546221683. The next prime is 4546221721. The reversal of 4546221689 is 9861226454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2400216064 + 2146005625 = 48992^2 + 46325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4546221689 is a prime.

It is not a weakly prime, because it can be changed into another prime (4546221683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273110844 + 2273110845.

It is an arithmetic number, because the mean of its divisors is an integer number (2273110845).

Almost surely, 2^4546221689 is an apocalyptic number.

It is an amenable number.

4546221689 is a deficient number, since it is larger than the sum of its proper divisors (1).

4546221689 is an equidigital number, since it uses as much as digits as its factorization.

4546221689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 4546221689 is about 67425.6752950981. The cubic root of 4546221689 is about 1656.5969973729.

The spelling of 4546221689 in words is "four billion, five hundred forty-six million, two hundred twenty-one thousand, six hundred eighty-nine".