6728447508 has 24 divisors (see below), whose sum is σ = 16382307648. Its totient is φ = 2145302016.

The previous prime is 6728447507. The next prime is 6728447513. The reversal of 6728447508 is 8057448276.

It is a super-2 number, since 2×6728447508² = 90544011735822820128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728447507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12188941 + ... + 12189492.

It is an arithmetic number, because the mean of its divisors is an integer number (682596152).

Almost surely, 2^6728447508 is an apocalyptic number.

It is an amenable number.

6728447508 is an abundant number, since it is smaller than the sum of its proper divisors (9653860140).

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

6728447508 is a wasteful number, since it uses less digits than its factorization.

6728447508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24378463 (or 24378461 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The square root of 6728447508 is about 82027.1144683269. The cubic root of 6728447508 is about 1887.8679903421.

The spelling of 6728447508 in words is "six billion, seven hundred twenty-eight million, four hundred forty-seven thousand, five hundred eight".