9871530050 has 18 divisors (see below), whose sum is σ = 18362352729. Its totient is φ = 3948331000.

The previous prime is 9871530037. The next prime is 9871530059. The reversal of 9871530050 is 500351789.

It can be written as a sum of positive squares in 2 ways, for example, as 9674099449 + 197430601 = 98357^2 + 14051^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=70255.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9871529986 and 9871530013.

It is not an unprimeable number, because it can be changed into a prime (9871530059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 695525 + ... + 709575.

Almost surely, 2^9871530050 is an apocalyptic number.

9871530050 is a deficient number, since it is larger than the sum of its proper divisors (8490822679).

9871530050 is an frugal number, since it uses more digits than its factorization.

9871530050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28114 (or 14058 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 9871530050 is about 99355.5738245218. The cubic root of 9871530050 is about 2145.1688929052.

The spelling of 9871530050 in words is "nine billion, eight hundred seventy-one million, five hundred thirty thousand, fifty".