5139898984 has 96 divisors (see below), whose sum is σ = 11014554600. Its totient is φ = 2244211200.

The previous prime is 5139898937. The next prime is 5139898997. The reversal of 5139898984 is 4898989315.

It can be written as a sum of positive squares in 4 ways, for example, as 4353096484 + 786802500 = 65978^2 + 28050^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7775614 + ... + 7776274.

Almost surely, 2^5139898984 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 5139898984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5507277300).

5139898984 is an abundant number, since it is smaller than the sum of its proper divisors (5874655616).

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

5139898984 is a wasteful number, since it uses less digits than its factorization.

5139898984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 980 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 64.

The square root of 5139898984 is about 71693.0888161474. The cubic root of 5139898984 is about 1725.7777333425. Note that the first 4 decimals are identical.

The spelling of 5139898984 in words is "five billion, one hundred thirty-nine million, eight hundred ninety-eight thousand, nine hundred eighty-four".