4493491109 has 2 divisors, whose sum is σ = 4493491110. Its totient is φ = 4493491108.

The previous prime is 4493491033. The next prime is 4493491141. The reversal of 4493491109 is 9011943944.

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., 4428237025 + 65254084 = 66545^2 + 8078^2 .

It is a cyclic number.

It is not a de Polignac number, because 4493491109 - 2⁸ = 4493490853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4493491109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4493491609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246745554 + 2246745555.

It is an arithmetic number, because the mean of its divisors is an integer number (2246745555).

Almost surely, 2^4493491109 is an apocalyptic number.

It is an amenable number.

4493491109 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493491109 is an equidigital number, since it uses as much as digits as its factorization.

4493491109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 4493491109 is about 67033.5073601255. The cubic root of 4493491109 is about 1650.1672446330.

The spelling of 4493491109 in words is "four billion, four hundred ninety-three million, four hundred ninety-one thousand, one hundred nine".