9959828685 has 8 divisors (see below), whose sum is σ = 15935725920. Its totient is φ = 5311908624.

The previous prime is 9959828663. The next prime is 9959828693. The reversal of 9959828685 is 5868289599.

9959828685 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9959828685 - 2⁸ = 9959828429 is a prime.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331994275 + ... + 331994304.

It is an arithmetic number, because the mean of its divisors is an integer number (1991965740).

Almost surely, 2^9959828685 is an apocalyptic number.

It is an amenable number.

9959828685 is a deficient number, since it is larger than the sum of its proper divisors (5975897235).

9959828685 is a wasteful number, since it uses less digits than its factorization.

9959828685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663988587.

The product of its digits is 111974400, while the sum is 69.

The square root of 9959828685 is about 99798.9413019998. The cubic root of 9959828685 is about 2151.5459359174.

The spelling of 9959828685 in words is "nine billion, nine hundred fifty-nine million, eight hundred twenty-eight thousand, six hundred eighty-five".