6728445696 has 72 divisors (see below), whose sum is σ = 20465705344. Its totient is φ = 1922411520.

The previous prime is 6728445679. The next prime is 6728445739. The reversal of 6728445696 is 6965448276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620410 + ... + 631161.

Almost surely, 2^6728445696 is an apocalyptic number.

It is an amenable number.

6728445696 is an abundant number, since it is smaller than the sum of its proper divisors (13737259648).

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

6728445696 is a wasteful number, since it uses less digits than its factorization.

6728445696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251597 (or 1251583 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The square root of 6728445696 is about 82027.1034231979. The cubic root of 6728445696 is about 1887.8678208718.

The spelling of 6728445696 in words is "six billion, seven hundred twenty-eight million, four hundred forty-five thousand, six hundred ninety-six".