43234000643 has 2 divisors, whose sum is σ = 43234000644. Its totient is φ = 43234000642.

The previous prime is 43234000561. The next prime is 43234000669. The reversal of 43234000643 is 34600043234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43234000643 - 2⁸ = 43234000387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (43234300643) 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, 21617000321 + 21617000322.

It is an arithmetic number, because the mean of its divisors is an integer number (21617000322).

Almost surely, 2^43234000643 is an apocalyptic number.

43234000643 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234000643 is an equidigital number, since it uses as much as digits as its factorization.

43234000643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43234000643 its reverse (34600043234), we get a palindrome (77834043877).

The spelling of 43234000643 in words is "forty-three billion, two hundred thirty-four million, six hundred forty-three", and thus it is an aban number.