5439568128 has 144 divisors (see below), whose sum is σ = 14942751936. Its totient is φ = 1755832320.

The previous prime is 5439568111. The next prime is 5439568177. The reversal of 5439568128 is 8218659345.

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 15 ways as a sum of consecutive naturals, for example, 3137950 + ... + 3139682.

Almost surely, 2^5439568128 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 5439568128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7471375968).

5439568128 is an abundant number, since it is smaller than the sum of its proper divisors (9503183808).

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

5439568128 is a wasteful number, since it uses less digits than its factorization.

5439568128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1866 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 5439568128 is about 73753.4279067760. The cubic root of 5439568128 is about 1758.6853267585.

The spelling of 5439568128 in words is "five billion, four hundred thirty-nine million, five hundred sixty-eight thousand, one hundred twenty-eight".