5128157839500 has 144 divisors (see below), whose sum is σ = 17129254064832. Its totient is φ = 1287067046400.

The previous prime is 5128157839489. The next prime is 5128157839507. The reversal of 5128157839500 is 59387518215.

5128157839500 is a `hidden beast` number, since 5 + 1 + 2 + 8 + 1 + 57 + 83 + 9 + 500 = 666.

It is not an unprimeable number, because it can be changed into a prime (5128157839507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33440872 + ... + 33593871.

It is an arithmetic number, because the mean of its divisors is an integer number (118953153228).

Almost surely, 2^{5128157839500} is an apocalyptic number.

5128157839500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5128157839500 is an abundant number, since it is smaller than the sum of its proper divisors (12001096225332).

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

5128157839500 is a wasteful number, since it uses less digits than its factorization.

5128157839500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67034785 (or 67034770 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 54.

The spelling of 5128157839500 in words is "five trillion, one hundred twenty-eight billion, one hundred fifty-seven million, eight hundred thirty-nine thousand, five hundred".