9935685012 has 72 divisors (see below), whose sum is σ = 26193297312. Its totient is φ = 2906960000.

The previous prime is 9935685007. The next prime is 9935685043. The reversal of 9935685012 is 2105865399.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66262 + ... + 155762.

It is an arithmetic number, because the mean of its divisors is an integer number (363795796).

Almost surely, 2^9935685012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9935685012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13096648656).

9935685012 is an abundant number, since it is smaller than the sum of its proper divisors (16257612300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9935685012 is a wasteful number, since it uses less digits than its factorization.

9935685012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89577 (or 89546 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 9935685012 is about 99677.9063383657. The cubic root of 9935685012 is about 2149.8060046343.

The spelling of 9935685012 in words is "nine billion, nine hundred thirty-five million, six hundred eighty-five thousand, twelve".