5617849728 has 128 divisors (see below), whose sum is σ = 15836601600. Its totient is φ = 1760675840.

The previous prime is 5617849709. The next prime is 5617849739. The reversal of 5617849728 is 8279487165.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515698 + ... + 526478.

It is an arithmetic number, because the mean of its divisors is an integer number (123723450).

Almost surely, 2^5617849728 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 5617849728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7918300800).

5617849728 is an abundant number, since it is smaller than the sum of its proper divisors (10218751872).

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

5617849728 is a wasteful number, since it uses less digits than its factorization.

5617849728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880 (or 10868 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The square root of 5617849728 is about 74952.3163618043. The cubic root of 5617849728 is about 1777.6927696204.

The spelling of 5617849728 in words is "five billion, six hundred seventeen million, eight hundred forty-nine thousand, seven hundred twenty-eight".