9811656344 has 32 divisors (see below), whose sum is σ = 21338791680. Its totient is φ = 4142232864.

The previous prime is 9811656343. The next prime is 9811656359. The reversal of 9811656344 is 4436561189.

9811656344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9811656343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1303772 + ... + 1311275.

It is an arithmetic number, because the mean of its divisors is an integer number (666837240).

Almost surely, 2^9811656344 is an apocalyptic number.

It is an amenable number.

9811656344 is an abundant number, since it is smaller than the sum of its proper divisors (11527135336).

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

9811656344 is a wasteful number, since it uses less digits than its factorization.

9811656344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615127 (or 2615123 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 9811656344 is about 99053.8052979289. The cubic root of 9811656344 is about 2140.8230700098.

The spelling of 9811656344 in words is "nine billion, eight hundred eleven million, six hundred fifty-six thousand, three hundred forty-four".