6713280648 has 80 divisors (see below), whose sum is σ = 18826435980. Its totient is φ = 2235019392.

The previous prime is 6713280647. The next prime is 6713280667. The reversal of 6713280648 is 8460823176.

It can be written as a sum of positive squares in 2 ways, for example, as 6593115204 + 120165444 = 81198^2 + 10962^2 .

It is a super-2 number, since 2×6713280648² = 90136274117622599808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6713280643) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 562390 + ... + 574202.

Almost surely, 2^6713280648 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 6713280648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9413217990).

6713280648 is an abundant number, since it is smaller than the sum of its proper divisors (12113155332).

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

6713280648 is a wasteful number, since it uses less digits than its factorization.

6713280648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12708 (or 12695 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 6713280648 is about 81934.6120269084. The cubic root of 6713280648 is about 1886.4484171673.

The spelling of 6713280648 in words is "six billion, seven hundred thirteen million, two hundred eighty thousand, six hundred forty-eight".