5128609860 has 144 divisors (see below), whose sum is σ = 17026656192. Its totient is φ = 1239225600.

The previous prime is 5128609859. The next prime is 5128609879. The reversal of 5128609860 is 689068215.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 623575 + ... + 631745.

It is an arithmetic number, because the mean of its divisors is an integer number (118240668).

Almost surely, 2^5128609860 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 5128609860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8513328096).

5128609860 is an abundant number, since it is smaller than the sum of its proper divisors (11898046332).

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

5128609860 is a wasteful number, since it uses less digits than its factorization.

5128609860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514 (or 8509 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5128609860 is about 71614.3132341573. The cubic root of 5128609860 is about 1724.5133245846.

The spelling of 5128609860 in words is "five billion, one hundred twenty-eight million, six hundred nine thousand, eight hundred sixty".