43226398349 has 2 divisors, whose sum is σ = 43226398350. Its totient is φ = 43226398348.

The previous prime is 43226398301. The next prime is 43226398351. The reversal of 43226398349 is 94389362234.

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., 43112293225 + 114105124 = 207635^2 + 10682^2 .

It is a cyclic number.

It is not a de Polignac number, because 43226398349 - 2⁸ = 43226398093 is a prime.

It is a Sophie Germain prime.

Together with 43226398351, it forms a pair of twin primes.

It is a Chen 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 43226398349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43226338349) 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, 21613199174 + 21613199175.

It is an arithmetic number, because the mean of its divisors is an integer number (21613199175).

Almost surely, 2^43226398349 is an apocalyptic number.

It is an amenable number.

43226398349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43226398349 is an equidigital number, since it uses as much as digits as its factorization.

43226398349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 53.

The spelling of 43226398349 in words is "forty-three billion, two hundred twenty-six million, three hundred ninety-eight thousand, three hundred forty-nine".