9820744056 has 48 divisors (see below), whose sum is σ = 27754281360. Its totient is φ = 3131251200.

The previous prime is 9820744049. The next prime is 9820744091. The reversal of 9820744056 is 6504470289.

It is a happy number.

It is a super-2 number, since 2×9820744056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2963545 + ... + 2966856.

It is an arithmetic number, because the mean of its divisors is an integer number (578214195).

Almost surely, 2^9820744056 is an apocalyptic number.

It is an amenable number.

9820744056 is an abundant number, since it is smaller than the sum of its proper divisors (17933537304).

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

9820744056 is a wasteful number, since it uses less digits than its factorization.

9820744056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930436 (or 5930429 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 9820744056 is about 99099.6672850116. The cubic root of 9820744056 is about 2141.4838208332.

The spelling of 9820744056 in words is "nine billion, eight hundred twenty million, seven hundred forty-four thousand, fifty-six".