43620433064473 has 2 divisors, whose sum is σ = 43620433064474. Its totient is φ = 43620433064472.

The previous prime is 43620433064447. The next prime is 43620433064479. The reversal of 43620433064473 is 37446033402634.

43620433064473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28354432212544 + 15266000851929 = 5324888^2 + 3907173^2 .

It is a cyclic number.

It is not a de Polignac number, because 43620433064473 - 2⁵ = 43620433064441 is a prime.

It is not a weakly prime, because it can be changed into another prime (43620433064479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21810216532236 + 21810216532237.

It is an arithmetic number, because the mean of its divisors is an integer number (21810216532237).

Almost surely, 2^{43620433064473} is an apocalyptic number.

It is an amenable number.

43620433064473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43620433064473 is an equidigital number, since it uses as much as digits as its factorization.

43620433064473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 49.

The spelling of 43620433064473 in words is "forty-three trillion, six hundred twenty billion, four hundred thirty-three million, sixty-four thousand, four hundred seventy-three".