5817878128 has 80 divisors (see below), whose sum is σ = 12347146240. Its totient is φ = 2645395200.

The previous prime is 5817878041. The next prime is 5817878137. The reversal of 5817878128 is 8218787185.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194418 + ... + 1199278.

It is an arithmetic number, because the mean of its divisors is an integer number (154339328).

Almost surely, 2^5817878128 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 5817878128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6173573120).

5817878128 is an abundant number, since it is smaller than the sum of its proper divisors (6529268112).

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

5817878128 is a wasteful number, since it uses less digits than its factorization.

5817878128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5040 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 55.

The square root of 5817878128 is about 76275.0164077334. The cubic root of 5817878128 is about 1798.5459582502.

The spelling of 5817878128 in words is "five billion, eight hundred seventeen million, eight hundred seventy-eight thousand, one hundred twenty-eight".