43009345441 has 4 divisors (see below), whose sum is σ = 43010038192. Its totient is φ = 43008652692.

The previous prime is 43009345439. The next prime is 43009345447. The reversal of 43009345441 is 14454390034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43009345441 - 2¹ = 43009345439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43009345441.

It is not an unprimeable number, because it can be changed into a prime (43009345447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242955 + ... + 380848.

It is an arithmetic number, because the mean of its divisors is an integer number (10752509548).

Almost surely, 2^43009345441 is an apocalyptic number.

It is an amenable number.

43009345441 is a deficient number, since it is larger than the sum of its proper divisors (692751).

43009345441 is an equidigital number, since it uses as much as digits as its factorization.

43009345441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692750.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 43009345441 in words is "forty-three billion, nine million, three hundred forty-five thousand, four hundred forty-one".