43443800643 has 8 divisors (see below), whose sum is σ = 58100069056. Its totient is φ = 28875033000.

The previous prime is 43443800591. The next prime is 43443800651. The reversal of 43443800643 is 34600834434.

43443800643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43443800643 - 2⁶ = 43443800579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43443800683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21874033 + ... + 21876018.

It is an arithmetic number, because the mean of its divisors is an integer number (7262508632).

Almost surely, 2^43443800643 is an apocalyptic number.

43443800643 is a deficient number, since it is larger than the sum of its proper divisors (14656268413).

43443800643 is a wasteful number, since it uses less digits than its factorization.

43443800643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43750385.

The product of its (nonzero) digits is 331776, while the sum is 39.

The spelling of 43443800643 in words is "forty-three billion, four hundred forty-three million, eight hundred thousand, six hundred forty-three".