6728445682 has 12 divisors (see below), whose sum is σ = 11740451310. Its totient is φ = 2883619536.

The previous prime is 6728445679. The next prime is 6728445739. The reversal of 6728445682 is 2865448276.

It can be written as a sum of positive squares in only one way, i.e., 3468149881 + 3260295801 = 58891^2 + 57099^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34328707 + ... + 34328902.

Almost surely, 2^6728445682 is an apocalyptic number.

6728445682 is a deficient number, since it is larger than the sum of its proper divisors (5012005628).

6728445682 is a wasteful number, since it uses less digits than its factorization.

6728445682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68657625 (or 68657618 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 52.

The square root of 6728445682 is about 82027.1033378602. The cubic root of 6728445682 is about 1887.8678195624.

The spelling of 6728445682 in words is "six billion, seven hundred twenty-eight million, four hundred forty-five thousand, six hundred eighty-two".