43324256641 has 2 divisors, whose sum is σ = 43324256642. Its totient is φ = 43324256640.

The previous prime is 43324256629. The next prime is 43324256663. The reversal of 43324256641 is 14665242334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38443837041 + 4880419600 = 196071^2 + 69860^2 .

It is a cyclic number.

It is not a de Polignac number, because 43324256641 - 2⁵ = 43324256609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43324256594 and 43324256603.

It is not a weakly prime, because it can be changed into another prime (43324256621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21662128320 + 21662128321.

It is an arithmetic number, because the mean of its divisors is an integer number (21662128321).

Almost surely, 2^43324256641 is an apocalyptic number.

It is an amenable number.

43324256641 is a deficient number, since it is larger than the sum of its proper divisors (1).

43324256641 is an equidigital number, since it uses as much as digits as its factorization.

43324256641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 40.

Adding to 43324256641 its reverse (14665242334), we get a palindrome (57989498975).

The spelling of 43324256641 in words is "forty-three billion, three hundred twenty-four million, two hundred fifty-six thousand, six hundred forty-one".