9946985671 has 16 divisors (see below), whose sum is σ = 11677031424. Its totient is φ = 8296301664.

The previous prime is 9946985611. The next prime is 9946985689. The reversal of 9946985671 is 1765896499.

9946985671 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 9946985671 - 2¹¹ = 9946983623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9946985611) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30465 + ... + 144298.

It is an arithmetic number, because the mean of its divisors is an integer number (729814464).

Almost surely, 2^9946985671 is an apocalyptic number.

9946985671 is a deficient number, since it is larger than the sum of its proper divisors (1730045753).

9946985671 is a wasteful number, since it uses less digits than its factorization.

9946985671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174990.

The product of its digits is 29393280, while the sum is 64.

The square root of 9946985671 is about 99734.5761057819. The cubic root of 9946985671 is about 2150.6207452977.

The spelling of 9946985671 in words is "nine billion, nine hundred forty-six million, nine hundred eighty-five thousand, six hundred seventy-one".