5199638520 has 256 divisors, whose sum is σ = 16982784000. Its totient is φ = 1269610496.

The previous prime is 5199638489. The next prime is 5199638533. The reversal of 5199638520 is 258369915.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5199638520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13366486 + ... + 13366874.

It is an arithmetic number, because the mean of its divisors is an integer number (66339000).

Almost surely, 2^5199638520 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 5199638520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8491392000).

5199638520 is an abundant number, since it is smaller than the sum of its proper divisors (11783145480).

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

5199638520 is a wasteful number, since it uses less digits than its factorization.

5199638520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 5199638520 is about 72108.5190528831. The cubic root of 5199638520 is about 1732.4380651218.

The spelling of 5199638520 in words is "five billion, one hundred ninety-nine million, six hundred thirty-eight thousand, five hundred twenty".