9885981706 has 4 divisors (see below), whose sum is σ = 14828972562. Its totient is φ = 4942990852.

The previous prime is 9885981691. The next prime is 9885981799. The reversal of 9885981706 is 6071895889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8110623481 + 1775358225 = 90059^2 + 42135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2471495425 + ... + 2471495428.

Almost surely, 2^9885981706 is an apocalyptic number.

9885981706 is a deficient number, since it is larger than the sum of its proper divisors (4942990856).

9885981706 is a wasteful number, since it uses less digits than its factorization.

9885981706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942990855.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The square root of 9885981706 is about 99428.2741779218. The cubic root of 9885981706 is about 2146.2152057769.

The spelling of 9885981706 in words is "nine billion, eight hundred eighty-five million, nine hundred eighty-one thousand, seven hundred six".