6528043830 has 128 divisors (see below), whose sum is σ = 19825274880. Its totient is φ = 1336199040.

The previous prime is 6528043813. The next prime is 6528043831. The reversal of 6528043830 is 383408256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6528043831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 133681 + ... + 175859.

It is an arithmetic number, because the mean of its divisors is an integer number (154884960).

Almost surely, 2^6528043830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6528043830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9912637440).

6528043830 is an abundant number, since it is smaller than the sum of its proper divisors (13297231050).

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

6528043830 is a wasteful number, since it uses less digits than its factorization.

6528043830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42274.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 6528043830 is about 80796.3107449839. The cubic root of 6528043830 is about 1868.9356740976.

The spelling of 6528043830 in words is "six billion, five hundred twenty-eight million, forty-three thousand, eight hundred thirty".