5162185728 has 440 divisors, whose sum is σ = 18689470272. Its totient is φ = 1385496576.

The previous prime is 5162185723. The next prime is 5162185741. The reversal of 5162185728 is 8275812615.

5162185728 is a `hidden beast` number, since 5 + 1 + 62 + 18 + 572 + 8 = 666.

It is a super-2 number, since 2×5162185728² = 53296322980733779968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5162185723) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9870075 + ... + 9870597.

Almost surely, 2^5162185728 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 5162185728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9344735136).

5162185728 is an abundant number, since it is smaller than the sum of its proper divisors (13527284544).

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

5162185728 is a wasteful number, since it uses less digits than its factorization.

5162185728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 552 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 5162185728 is about 71848.3522984348. The cubic root of 5162185728 is about 1728.2684768035.

The spelling of 5162185728 in words is "five billion, one hundred sixty-two million, one hundred eighty-five thousand, seven hundred twenty-eight".