5149888640 has 256 divisors, whose sum is σ = 14048778240. Its totient is φ = 1791590400.

The previous prime is 5149888631. The next prime is 5149888651. The reversal of 5149888640 is 468889415.

It is a happy 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, 10574477 + ... + 10574963.

It is an arithmetic number, because the mean of its divisors is an integer number (54878040).

Almost surely, 2^5149888640 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 5149888640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7024389120).

5149888640 is an abundant number, since it is smaller than the sum of its proper divisors (8898889600).

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

5149888640 is a wasteful number, since it uses less digits than its factorization.

5149888640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The square root of 5149888640 is about 71762.7245859576. The cubic root of 5149888640 is about 1726.8950554983.

The spelling of 5149888640 in words is "five billion, one hundred forty-nine million, eight hundred eighty-eight thousand, six hundred forty".