4423223166449 has 2 divisors, whose sum is σ = 4423223166450. Its totient is φ = 4423223166448.

The previous prime is 4423223166431. The next prime is 4423223166499. The reversal of 4423223166449 is 9446613223244.

It is an a-pointer prime, because the next prime (4423223166499) can be obtained adding 4423223166449 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3379188798049 + 1044034368400 = 1838257^2 + 1021780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4423223166449 is a prime.

It is a super-2 number, since 2×4423223166449² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4423223166397 and 4423223166406.

It is not a weakly prime, because it can be changed into another prime (4423223166499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211611583224 + 2211611583225.

It is an arithmetic number, because the mean of its divisors is an integer number (2211611583225).

Almost surely, 2^{4423223166449} is an apocalyptic number.

It is an amenable number.

4423223166449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423223166449 is an equidigital number, since it uses as much as digits as its factorization.

4423223166449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 50.

The spelling of 4423223166449 in words is "four trillion, four hundred twenty-three billion, two hundred twenty-three million, one hundred sixty-six thousand, four hundred forty-nine".