9868521364 has 12 divisors (see below), whose sum is σ = 18598367284. Its totient is φ = 4554702144.

The previous prime is 9868521343. The next prime is 9868521373. The reversal of 9868521364 is 4631258689.

9868521364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6194949264 + 3673572100 = 78708^2 + 60610^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 189779257 = 9868521364 / (9 + 8 + 6 + 8 + 5 + 2 + 1 + 3 + 6 + 4).

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 3 ways as a sum of consecutive naturals, for example, 94889577 + ... + 94889680.

Almost surely, 2^9868521364 is an apocalyptic number.

It is an amenable number.

9868521364 is a deficient number, since it is larger than the sum of its proper divisors (8729845920).

9868521364 is a wasteful number, since it uses less digits than its factorization.

9868521364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189779274 (or 189779272 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The square root of 9868521364 is about 99340.4316680776. The cubic root of 9868521364 is about 2144.9509329267.

The spelling of 9868521364 in words is "nine billion, eight hundred sixty-eight million, five hundred twenty-one thousand, three hundred sixty-four".