6875721984 has 72 divisors (see below), whose sum is σ = 18318426112. Its totient is φ = 2289530880.

The previous prime is 6875721953. The next prime is 6875721989. The reversal of 6875721984 is 4891275786.

It is not an unprimeable number, because it can be changed into a prime (6875721989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835329 + ... + 843519.

Almost surely, 2^6875721984 is an apocalyptic number.

6875721984 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 6875721984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9159213056).

6875721984 is an abundant number, since it is smaller than the sum of its proper divisors (11442704128).

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

6875721984 is a wasteful number, since it uses less digits than its factorization.

6875721984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303 (or 9289 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The square root of 6875721984 is about 82919.9733719205. The cubic root of 6875721984 is about 1901.5427897679.

The spelling of 6875721984 in words is "six billion, eight hundred seventy-five million, seven hundred twenty-one thousand, nine hundred eighty-four".