9889875757 has 2 divisors, whose sum is σ = 9889875758. Its totient is φ = 9889875756.

The previous prime is 9889875703. The next prime is 9889875833. The reversal of 9889875757 is 7575789889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9287369641 + 602506116 = 96371^2 + 24546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9889875757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9889875757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9889875857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944937878 + 4944937879.

It is an arithmetic number, because the mean of its divisors is an integer number (4944937879).

Almost surely, 2^9889875757 is an apocalyptic number.

It is an amenable number.

9889875757 is a deficient number, since it is larger than the sum of its proper divisors (1).

9889875757 is an equidigital number, since it uses as much as digits as its factorization.

9889875757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 73.

The square root of 9889875757 is about 99447.8544615217. The cubic root of 9889875757 is about 2146.4969641506.

The spelling of 9889875757 in words is "nine billion, eight hundred eighty-nine million, eight hundred seventy-five thousand, seven hundred fifty-seven".