6728075564 has 48 divisors (see below), whose sum is σ = 13815337536. Its totient is φ = 2806809600.

The previous prime is 6728075489. The next prime is 6728075569. The reversal of 6728075564 is 4655708276.

It is not an unprimeable number, because it can be changed into a prime (6728075569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522872 + ... + 535584.

It is an arithmetic number, because the mean of its divisors is an integer number (287819532).

Almost surely, 2^6728075564 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 6728075564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6907668768).

6728075564 is an abundant number, since it is smaller than the sum of its proper divisors (7087261972).

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

6728075564 is a wasteful number, since it uses less digits than its factorization.

6728075564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13226 (or 13224 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 50.

The square root of 6728075564 is about 82024.8472354566. The cubic root of 6728075564 is about 1887.8332030151.

The spelling of 6728075564 in words is "six billion, seven hundred twenty-eight million, seventy-five thousand, five hundred sixty-four".