9539834643 has 12 divisors (see below), whose sum is σ = 14133840280. Its totient is φ = 6359551416.

The previous prime is 9539834599. The next prime is 9539834651. The reversal of 9539834643 is 3464389359.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

9539834643 is a `hidden beast` number, since 95 + 3 + 98 + 3 + 464 + 3 = 666.

It is not a de Polignac number, because 9539834643 - 2¹⁰ = 9539833619 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 9539834643.

It is not an unprimeable number, because it can be changed into a prime (9539834443) 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, 498121 + ... + 516917.

Almost surely, 2^9539834643 is an apocalyptic number.

9539834643 is a deficient number, since it is larger than the sum of its proper divisors (4594005637).

9539834643 is an frugal number, since it uses more digits than its factorization.

9539834643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37603 (or 18800 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 9539834643 is about 97672.0770896166. The cubic root of 9539834643 is about 2120.8678838741.

The spelling of 9539834643 in words is "nine billion, five hundred thirty-nine million, eight hundred thirty-four thousand, six hundred forty-three".