9946547775 has 72 divisors (see below), whose sum is σ = 18208584576. Its totient is φ = 5189025600.

The previous prime is 9946547761. The next prime is 9946547797. The reversal of 9946547775 is 5777456499.

9946547775 is a `hidden beast` number, since 9 + 94 + 6 + 5 + 477 + 75 = 666.

9946547775 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9946547775 - 2⁴ = 9946547759 is a prime.

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 71 ways as a sum of consecutive naturals, for example, 1920940 + ... + 1926110.

It is an arithmetic number, because the mean of its divisors is an integer number (252897008).

Almost surely, 2^9946547775 is an apocalyptic number.

9946547775 is a deficient number, since it is larger than the sum of its proper divisors (8262036801).

9946547775 is a wasteful number, since it uses less digits than its factorization.

9946547775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373 (or 5365 counting only the distinct ones).

The product of its digits is 66679200, while the sum is 63.

The square root of 9946547775 is about 99732.3807747514. The cubic root of 9946547775 is about 2150.5891859198.

The spelling of 9946547775 in words is "nine billion, nine hundred forty-six million, five hundred forty-seven thousand, seven hundred seventy-five".