6728263308 has 144 divisors (see below), whose sum is σ = 18562995360. Its totient is φ = 2042523648.

The previous prime is 6728263259. The next prime is 6728263319. The reversal of 6728263308 is 8033628276.

6728263308 is a `hidden beast` number, since 6 + 7 + 2 + 8 + 2 + 633 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19060060 + ... + 19060412.

It is an arithmetic number, because the mean of its divisors is an integer number (128909690).

Almost surely, 2^6728263308 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 6728263308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9281497680).

6728263308 is an abundant number, since it is smaller than the sum of its proper divisors (11834732052).

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

6728263308 is a wasteful number, since it uses less digits than its factorization.

6728263308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 6728263308 is about 82025.9916611802. The cubic root of 6728263308 is about 1887.8507625712.

The spelling of 6728263308 in words is "six billion, seven hundred twenty-eight million, two hundred sixty-three thousand, three hundred eight".