43043365821042 has 24 divisors (see below), whose sum is σ = 94841314523280. Its totient is φ = 14104605748920.

The previous prime is 43043365821031. The next prime is 43043365821047. The reversal of 43043365821042 is 24012856334034.

43043365821042 is a `hidden beast` number, since 4 + 30 + 4 + 3 + 36 + 582 + 1 + 0 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (43043365821047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20265237084 + ... + 20265239207.

It is an arithmetic number, because the mean of its divisors is an integer number (3951721438470).

Almost surely, 2^{43043365821042} is an apocalyptic number.

43043365821042 is an abundant number, since it is smaller than the sum of its proper divisors (51797948702238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43043365821042 is a wasteful number, since it uses less digits than its factorization.

43043365821042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40530476358 (or 40530476355 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 43043365821042 in words is "forty-three trillion, forty-three billion, three hundred sixty-five million, eight hundred twenty-one thousand, forty-two".