5128559568 has 120 divisors (see below), whose sum is σ = 15770969760. Its totient is φ = 1542862080.

The previous prime is 5128559563. The next prime is 5128559599. The reversal of 5128559568 is 8659558215.

5128559568 is a `hidden beast` number, since 5 + 1 + 28 + 5 + 59 + 568 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128559563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208530 + ... + 231822.

It is an arithmetic number, because the mean of its divisors is an integer number (131424748).

Almost surely, 2^5128559568 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 5128559568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7885484880).

5128559568 is an abundant number, since it is smaller than the sum of its proper divisors (10642410192).

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

5128559568 is a wasteful number, since it uses less digits than its factorization.

5128559568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23457 (or 23448 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 54.

The square root of 5128559568 is about 71613.9621023722. The cubic root of 5128559568 is about 1724.5076876115.

The spelling of 5128559568 in words is "five billion, one hundred twenty-eight million, five hundred fifty-nine thousand, five hundred sixty-eight".