43226448649 has 2 divisors, whose sum is σ = 43226448650. Its totient is φ = 43226448648.

The previous prime is 43226448613. The next prime is 43226448673. The reversal of 43226448649 is 94684462234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40098060025 + 3128388624 = 200245^2 + 55932^2 .

It is a cyclic number.

It is not a de Polignac number, because 43226448649 - 2³¹ = 41078965001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43226448596 and 43226448605.

It is not a weakly prime, because it can be changed into another prime (43226448679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21613224324 + 21613224325.

It is an arithmetic number, because the mean of its divisors is an integer number (21613224325).

Almost surely, 2^43226448649 is an apocalyptic number.

It is an amenable number.

43226448649 is a deficient number, since it is larger than the sum of its proper divisors (1).

43226448649 is an equidigital number, since it uses as much as digits as its factorization.

43226448649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7962624, while the sum is 52.

The spelling of 43226448649 in words is "forty-three billion, two hundred twenty-six million, four hundred forty-eight thousand, six hundred forty-nine".