43445335533473 has 2 divisors, whose sum is σ = 43445335533474. Its totient is φ = 43445335533472.

The previous prime is 43445335533419. The next prime is 43445335533547. The reversal of 43445335533473 is 37433553354434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43126644799744 + 318690733729 = 6567088^2 + 564527^2 .

It is a cyclic number.

It is not a de Polignac number, because 43445335533473 - 2³⁶ = 43376616056737 is a prime.

It is not a weakly prime, because it can be changed into another prime (43445335233473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21722667766736 + 21722667766737.

It is an arithmetic number, because the mean of its divisors is an integer number (21722667766737).

Almost surely, 2^{43445335533473} is an apocalyptic number.

It is an amenable number.

43445335533473 is a deficient number, since it is larger than the sum of its proper divisors (1).

43445335533473 is an equidigital number, since it uses as much as digits as its factorization.

43445335533473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296000, while the sum is 56.

The spelling of 43445335533473 in words is "forty-three trillion, four hundred forty-five billion, three hundred thirty-five million, five hundred thirty-three thousand, four hundred seventy-three".