5139918720 has 256 divisors, whose sum is σ = 19275796800. Its totient is φ = 1289945088.

The previous prime is 5139918701. The next prime is 5139918757. The reversal of 5139918720 is 278199315.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285012 + ... + 302508.

Almost surely, 2^5139918720 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 5139918720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9637898400).

5139918720 is an abundant number, since it is smaller than the sum of its proper divisors (14135878080).

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

5139918720 is a wasteful number, since it uses less digits than its factorization.

5139918720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542 (or 17524 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 5139918720 is about 71693.2264582924. The cubic root of 5139918720 is about 1725.7799421995.

The spelling of 5139918720 in words is "five billion, one hundred thirty-nine million, nine hundred eighteen thousand, seven hundred twenty".