5519434640 has 80 divisors (see below), whose sum is σ = 13523241600. Its totient is φ = 2089230336.

The previous prime is 5519434631. The next prime is 5519434699. The reversal of 5519434640 is 464349155.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2003504 + ... + 2006256.

It is an arithmetic number, because the mean of its divisors is an integer number (169040520).

Almost surely, 2^5519434640 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 5519434640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6761620800).

5519434640 is an abundant number, since it is smaller than the sum of its proper divisors (8003806960).

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

5519434640 is a wasteful number, since it uses less digits than its factorization.

5519434640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104 (or 4098 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5519434640 is about 74292.8976416992. The cubic root of 5519434640 is about 1767.2508462461.

The spelling of 5519434640 in words is "five billion, five hundred nineteen million, four hundred thirty-four thousand, six hundred forty".