6943881328 has 40 divisors (see below), whose sum is σ = 13639642880. Its totient is φ = 3424075200.

The previous prime is 6943881317. The next prime is 6943881349. The reversal of 6943881328 is 8231883496.

It is a congruent number.

It is an unprimeable number.

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, 1325851 + ... + 1331077.

It is an arithmetic number, because the mean of its divisors is an integer number (340991072).

Almost surely, 2^6943881328 is an apocalyptic number.

It is an amenable number.

6943881328 is a deficient number, since it is larger than the sum of its proper divisors (6695761552).

6943881328 is a wasteful number, since it uses less digits than its factorization.

6943881328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6365 (or 6359 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 6943881328 is about 83329.9545661703. The cubic root of 6943881328 is about 1907.8055009351.

The spelling of 6943881328 in words is "six billion, nine hundred forty-three million, eight hundred eighty-one thousand, three hundred twenty-eight".