6943988416 has 56 divisors (see below), whose sum is σ = 13938967296. Its totient is φ = 3431957760.

The previous prime is 6943988399. The next prime is 6943988477. The reversal of 6943988416 is 6148893496.

It is a happy 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, 4320285 + ... + 4321891.

Almost surely, 2^6943988416 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 6943988416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6969483648).

6943988416 is an abundant number, since it is smaller than the sum of its proper divisors (6994978880).

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

6943988416 is a wasteful number, since it uses less digits than its factorization.

6943988416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2347 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 58.

The square root of 6943988416 is about 83330.5971177454. The cubic root of 6943988416 is about 1907.8153082276.

The spelling of 6943988416 in words is "six billion, nine hundred forty-three million, nine hundred eighty-eight thousand, four hundred sixteen".