9857143775 has 24 divisors (see below), whose sum is σ = 12377064960. Its totient is φ = 7786671840.

The previous prime is 9857143759. The next prime is 9857143799. The reversal of 9857143775 is 5773417589.

It is a happy number.

9857143775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9857143775 - 2⁴ = 9857143759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9857143775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 919094 + ... + 929756.

It is an arithmetic number, because the mean of its divisors is an integer number (515711040).

Almost surely, 2^9857143775 is an apocalyptic number.

9857143775 is a deficient number, since it is larger than the sum of its proper divisors (2519921185).

9857143775 is a wasteful number, since it uses less digits than its factorization.

9857143775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11135 (or 11130 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 56.

The square root of 9857143775 is about 99283.1495018163. The cubic root of 9857143775 is about 2144.1262989216.

The spelling of 9857143775 in words is "nine billion, eight hundred fifty-seven million, one hundred forty-three thousand, seven hundred seventy-five".