9825786656 has 24 divisors (see below), whose sum is σ = 22108020480. Its totient is φ = 4211051328.

The previous prime is 9825786647. The next prime is 9825786679. The reversal of 9825786656 is 6566875289.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21932336 + ... + 21932783.

It is an arithmetic number, because the mean of its divisors is an integer number (921167520).

Almost surely, 2^9825786656 is an apocalyptic number.

It is an amenable number.

9825786656 is an abundant number, since it is smaller than the sum of its proper divisors (12282233824).

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

9825786656 is a wasteful number, since it uses less digits than its factorization.

9825786656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43865136 (or 43865128 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 62.

The square root of 9825786656 is about 99125.1060831715. The cubic root of 9825786656 is about 2141.8502831753.

The spelling of 9825786656 in words is "nine billion, eight hundred twenty-five million, seven hundred eighty-six thousand, six hundred fifty-six".