5138068128 has 96 divisors (see below), whose sum is σ = 13722508800. Its totient is φ = 1682968320.

The previous prime is 5138068109. The next prime is 5138068181. The reversal of 5138068128 is 8218608315.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 5138068128.

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, 3671973 + ... + 3673371.

It is an arithmetic number, because the mean of its divisors is an integer number (142942800).

Almost surely, 2^5138068128 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 5138068128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6861254400).

5138068128 is an abundant number, since it is smaller than the sum of its proper divisors (8584440672).

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

5138068128 is a wasteful number, since it uses less digits than its factorization.

5138068128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 5138068128 is about 71680.3189725046. The cubic root of 5138068128 is about 1725.5727989808.

The spelling of 5138068128 in words is "five billion, one hundred thirty-eight million, sixty-eight thousand, one hundred twenty-eight".