6139984128 has 72 divisors (see below), whose sum is σ = 16402167936. Its totient is φ = 2039040000.

The previous prime is 6139984111. The next prime is 6139984177. The reversal of 6139984128 is 8214899316.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193378 + ... + 222878.

It is an arithmetic number, because the mean of its divisors is an integer number (227807888).

Almost surely, 2^6139984128 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 6139984128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8201083968).

6139984128 is an abundant number, since it is smaller than the sum of its proper divisors (10262183808).

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

6139984128 is a wasteful number, since it uses less digits than its factorization.

6139984128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29791 (or 29777 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 6139984128 is about 78358.0508180238. The cubic root of 6139984128 is about 1831.1436537263.

The spelling of 6139984128 in words is "six billion, one hundred thirty-nine million, nine hundred eighty-four thousand, one hundred twenty-eight".