6317881344 has 144 divisors (see below), whose sum is σ = 18837524160. Its totient is φ = 2037841920.

The previous prime is 6317881331. The next prime is 6317881351. The reversal of 6317881344 is 4431887136.

6317881344 is a `hidden beast` number, since 63 + 178 + 81 + 344 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6317881344.

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, 565864 + ... + 576920.

It is an arithmetic number, because the mean of its divisors is an integer number (130816140).

Almost surely, 2^6317881344 is an apocalyptic number.

6317881344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6317881344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9418762080).

6317881344 is an abundant number, since it is smaller than the sum of its proper divisors (12519642816).

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

6317881344 is a wasteful number, since it uses less digits than its factorization.

6317881344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116 (or 11093 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 6317881344 is about 79485.1013964252. The cubic root of 6317881344 is about 1848.6604711790.

The spelling of 6317881344 in words is "six billion, three hundred seventeen million, eight hundred eighty-one thousand, three hundred forty-four".