6728298506 has 12 divisors (see below), whose sum is σ = 10651587282. Its totient is φ = 3187088424.

The previous prime is 6728298503. The next prime is 6728298523. The reversal of 6728298506 is 6058928276.

It can be written as a sum of positive squares in only one way, i.e., 5953511281 + 774787225 = 77159^2 + 27835^2 .

It is not an unprimeable number, because it can be changed into a prime (6728298503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4658765 + ... + 4660208.

Almost surely, 2^6728298506 is an apocalyptic number.

6728298506 is a deficient number, since it is larger than the sum of its proper divisors (3923288776).

6728298506 is a wasteful number, since it uses less digits than its factorization.

6728298506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9319013 (or 9318994 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The square root of 6728298506 is about 82026.2062148433. The cubic root of 6728298506 is about 1887.8540545775.

The spelling of 6728298506 in words is "six billion, seven hundred twenty-eight million, two hundred ninety-eight thousand, five hundred six".