5287431128 has 64 divisors (see below), whose sum is σ = 11652076800. Its totient is φ = 2201834880.

The previous prime is 5287431101. The next prime is 5287431157. The reversal of 5287431128 is 8211347825.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2259383 + ... + 2261721.

It is an arithmetic number, because the mean of its divisors is an integer number (182063700).

Almost surely, 2^5287431128 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 5287431128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5826038400).

5287431128 is an abundant number, since it is smaller than the sum of its proper divisors (6364645672).

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

5287431128 is a wasteful number, since it uses less digits than its factorization.

5287431128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480 (or 3476 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 5287431128 is about 72714.7242860757. The cubic root of 5287431128 is about 1742.1340715458.

The spelling of 5287431128 in words is "five billion, two hundred eighty-seven million, four hundred thirty-one thousand, one hundred twenty-eight".