9985760443 has 16 divisors (see below), whose sum is σ = 10546524000. Its totient is φ = 9440714752.

The previous prime is 9985760437. The next prime is 9985760497. The reversal of 9985760443 is 3440675899.

It is a de Polignac number, because none of the positive numbers 2^k-9985760443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985760413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428373 + ... + 451081.

It is an arithmetic number, because the mean of its divisors is an integer number (659157750).

Almost surely, 2^9985760443 is an apocalyptic number.

9985760443 is a deficient number, since it is larger than the sum of its proper divisors (560763557).

9985760443 is a wasteful number, since it uses less digits than its factorization.

9985760443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23054.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The square root of 9985760443 is about 99928.7768513155. The cubic root of 9985760443 is about 2153.4115977464.

The spelling of 9985760443 in words is "nine billion, nine hundred eighty-five million, seven hundred sixty thousand, four hundred forty-three".