5128878912 has 28 divisors (see below), whose sum is σ = 13570159296. Its totient is φ = 1709626240.

The previous prime is 5128878889. The next prime is 5128878919. The reversal of 5128878912 is 2198788215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128878919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13356264 + ... + 13356647.

Almost surely, 2^5128878912 is an apocalyptic number.

It is an amenable number.

5128878912 is an abundant number, since it is smaller than the sum of its proper divisors (8441280384).

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

5128878912 is a wasteful number, since it uses less digits than its factorization.

5128878912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26712926 (or 26712916 counting only the distinct ones).

The product of its digits is 645120, while the sum is 51.

The square root of 5128878912 is about 71616.1916887515. The cubic root of 5128878912 is about 1724.5434806216.

The spelling of 5128878912 in words is "five billion, one hundred twenty-eight million, eight hundred seventy-eight thousand, nine hundred twelve".