6529280000 has 120 divisors (see below), whose sum is σ = 16317190890. Its totient is φ = 2611200000.

The previous prime is 6529279993. The next prime is 6529280041. The reversal of 6529280000 is 829256.

It can be written as a sum of positive squares in 5 ways, for example, as 477684736 + 6051595264 = 21856^2 + 77792^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1277450 + ... + 1282550.

Almost surely, 2^6529280000 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 6529280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8158595445).

6529280000 is an abundant number, since it is smaller than the sum of its proper divisors (9787910890).

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

6529280000 is an frugal number, since it uses more digits than its factorization.

6529280000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6529280000 is about 80803.9602989853. The cubic root of 6529280000 is about 1869.0536357442.

The spelling of 6529280000 in words is "six billion, five hundred twenty-nine million, two hundred eighty thousand".