6730511928 has 128 divisors (see below), whose sum is σ = 20044677120. Its totient is φ = 1842756480.

The previous prime is 6730511917. The next prime is 6730511993. The reversal of 6730511928 is 8291150376.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 6730511928.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 530151 + ... + 542697.

It is an arithmetic number, because the mean of its divisors is an integer number (156599040).

Almost surely, 2^6730511928 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 6730511928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10022338560).

6730511928 is an abundant number, since it is smaller than the sum of its proper divisors (13314165192).

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

6730511928 is a wasteful number, since it uses less digits than its factorization.

6730511928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12697 (or 12693 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 6730511928 is about 82039.6972690660. The cubic root of 6730511928 is about 1888.0610489392.

The spelling of 6730511928 in words is "six billion, seven hundred thirty million, five hundred eleven thousand, nine hundred twenty-eight".