5185609728 has 112 divisors (see below), whose sum is σ = 14892015936. Its totient is φ = 1595473920.

The previous prime is 5185609703. The next prime is 5185609757. The reversal of 5185609728 is 8279065815.

It is a super-2 number, since 2×5185609728² = 53781096502256467968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311373 + ... + 327603.

It is an arithmetic number, because the mean of its divisors is an integer number (132964428).

Almost surely, 2^5185609728 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 5185609728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7446007968).

5185609728 is an abundant number, since it is smaller than the sum of its proper divisors (9706406208).

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

5185609728 is a wasteful number, since it uses less digits than its factorization.

5185609728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16273 (or 16249 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The square root of 5185609728 is about 72011.1777990056. The cubic root of 5185609728 is about 1730.8786039102.

The spelling of 5185609728 in words is "five billion, one hundred eighty-five million, six hundred nine thousand, seven hundred twenty-eight".