4429161641 has 2 divisors, whose sum is σ = 4429161642. Its totient is φ = 4429161640.

The previous prime is 4429161617. The next prime is 4429161661. The reversal of 4429161641 is 1461619244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4422250000 + 6911641 = 66500^2 + 2629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4429161641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4429161595 and 4429161604.

It is not a weakly prime, because it can be changed into another prime (4429161601) 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, 2214580820 + 2214580821.

It is an arithmetic number, because the mean of its divisors is an integer number (2214580821).

Almost surely, 2^4429161641 is an apocalyptic number.

It is an amenable number.

4429161641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4429161641 is an equidigital number, since it uses as much as digits as its factorization.

4429161641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 4429161641 is about 66551.9469362092. The cubic root of 4429161641 is about 1642.2546869622.

The spelling of 4429161641 in words is "four billion, four hundred twenty-nine million, one hundred sixty-one thousand, six hundred forty-one".