9856520443 has 16 divisors (see below), whose sum is σ = 12309428736. Its totient is φ = 7667418240.

The previous prime is 9856520393. The next prime is 9856520477. The reversal of 9856520443 is 3440256589.

9856520443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9856520443 - 2⁹ = 9856519931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9856520393 and 9856520402.

It is not an unprimeable number, because it can be changed into a prime (9856520143) 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, 62271 + ... + 153592.

It is an arithmetic number, because the mean of its divisors is an integer number (769339296).

Almost surely, 2^9856520443 is an apocalyptic number.

9856520443 is a deficient number, since it is larger than the sum of its proper divisors (2452908293).

9856520443 is a wasteful number, since it uses less digits than its factorization.

9856520443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216474.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The square root of 9856520443 is about 99280.0102890809. The cubic root of 9856520443 is about 2144.0811022352.

The spelling of 9856520443 in words is "nine billion, eight hundred fifty-six million, five hundred twenty thousand, four hundred forty-three".