4543845909 has 4 divisors (see below), whose sum is σ = 6058461216. Its totient is φ = 3029230604.

The previous prime is 4543845893. The next prime is 4543845913. The reversal of 4543845909 is 9095483454.

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 4543845909 - 2⁴ = 4543845893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4543845959) 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, 757307649 + ... + 757307654.

It is an arithmetic number, because the mean of its divisors is an integer number (1514615304).

Almost surely, 2^4543845909 is an apocalyptic number.

It is an amenable number.

4543845909 is a deficient number, since it is larger than the sum of its proper divisors (1514615307).

4543845909 is a wasteful number, since it uses less digits than its factorization.

4543845909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514615306.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The square root of 4543845909 is about 67408.0552233930. The cubic root of 4543845909 is about 1656.3083770590.

The spelling of 4543845909 in words is "four billion, five hundred forty-three million, eight hundred forty-five thousand, nine hundred nine".