43403244217 has 2 divisors, whose sum is σ = 43403244218. Its totient is φ = 43403244216.

The previous prime is 43403244193. The next prime is 43403244257. The reversal of 43403244217 is 71244230434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43272736441 + 130507776 = 208021^2 + 11424^2 .

It is a cyclic number.

It is not a de Polignac number, because 43403244217 - 2¹⁹ = 43402719929 is a prime.

It is not a weakly prime, because it can be changed into another prime (43403244257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21701622108 + 21701622109.

It is an arithmetic number, because the mean of its divisors is an integer number (21701622109).

Almost surely, 2^43403244217 is an apocalyptic number.

It is an amenable number.

43403244217 is a deficient number, since it is larger than the sum of its proper divisors (1).

43403244217 is an equidigital number, since it uses as much as digits as its factorization.

43403244217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 34.

The spelling of 43403244217 in words is "forty-three billion, four hundred three million, two hundred forty-four thousand, two hundred seventeen".