6843487988 has 24 divisors (see below), whose sum is σ = 12505425408. Its totient is φ = 3270714656.

The previous prime is 6843487957. The next prime is 6843487997. The reversal of 6843487988 is 8897843486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112445 + ... + 162267.

It is an arithmetic number, because the mean of its divisors is an integer number (521059392).

Almost surely, 2^6843487988 is an apocalyptic number.

It is an amenable number.

6843487988 is a deficient number, since it is larger than the sum of its proper divisors (5661937420).

6843487988 is a wasteful number, since it uses less digits than its factorization.

6843487988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51343 (or 51341 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 65.

The square root of 6843487988 is about 82725.3769287273. The cubic root of 6843487988 is about 1898.5666001408.

The spelling of 6843487988 in words is "six billion, eight hundred forty-three million, four hundred eighty-seven thousand, nine hundred eighty-eight".