8311993056 has 144 divisors (see below), whose sum is σ = 25102677600. Its totient is φ = 2599870464.

The previous prime is 8311993037. The next prime is 8311993097. The reversal of 8311993056 is 6503991138.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1755300 + ... + 1760028.

It is an arithmetic number, because the mean of its divisors is an integer number (174324150).

Almost surely, 2^8311993056 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 8311993056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12551338800).

8311993056 is an abundant number, since it is smaller than the sum of its proper divisors (16790684544).

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

8311993056 is a wasteful number, since it uses less digits than its factorization.

8311993056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5110 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 8311993056 is about 91170.1324776925. The cubic root of 8311993056 is about 2025.6685741181.

The spelling of 8311993056 in words is "eight billion, three hundred eleven million, nine hundred ninety-three thousand, fifty-six".