3943543968 has 288 divisors, whose sum is σ = 14316172416. Its totient is φ = 1039868928.

The previous prime is 3943543963. The next prime is 3943543969. The reversal of 3943543968 is 8693453493.

3943543968 is a `hidden beast` number, since 3 + 9 + 4 + 3 + 543 + 96 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943543963) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 704830 + ... + 710402.

It is an arithmetic number, because the mean of its divisors is an integer number (49708932).

Almost surely, 2^3943543968 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 3943543968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7158086208).

3943543968 is an abundant number, since it is smaller than the sum of its proper divisors (10372628448).

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

3943543968 is a wasteful number, since it uses less digits than its factorization.

3943543968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618 (or 5598 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 3943543968 is about 62797.6430130941. The cubic root of 3943543968 is about 1579.8974414016.

The spelling of 3943543968 in words is "three billion, nine hundred forty-three million, five hundred forty-three thousand, nine hundred sixty-eight".