6529779256 has 128 divisors (see below), whose sum is σ = 16489267200. Its totient is φ = 2341140480.

The previous prime is 6529779247. The next prime is 6529779257.

6529779256 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6529779256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6529779257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3066000 + ... + 3068128.

It is an arithmetic number, because the mean of its divisors is an integer number (128822400).

Almost surely, 2^6529779256 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 6529779256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8244633600).

6529779256 is an abundant number, since it is smaller than the sum of its proper divisors (9959487944).

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

6529779256 is a wasteful number, since it uses less digits than its factorization.

6529779256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2545 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 58.

The square root of 6529779256 is about 80807.0495439600. The cubic root of 6529779256 is about 1869.1012730773.

The spelling of 6529779256 in words is "six billion, five hundred twenty-nine million, seven hundred seventy-nine thousand, two hundred fifty-six".