5631382872 has 256 divisors, whose sum is σ = 17398886400. Its totient is φ = 1679616000.

The previous prime is 5631382837. The next prime is 5631382891. The reversal of 5631382872 is 2782831365.

5631382872 is a `hidden beast` number, since 5 + 631 + 3 + 8 + 2 + 8 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6943347 + ... + 6944157.

It is an arithmetic number, because the mean of its divisors is an integer number (67964400).

Almost surely, 2^5631382872 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 5631382872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8699443200).

5631382872 is an abundant number, since it is smaller than the sum of its proper divisors (11767503528).

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

5631382872 is a wasteful number, since it uses less digits than its factorization.

5631382872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 925 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 5631382872 is about 75042.5404154204. The cubic root of 5631382872 is about 1779.1190852150.

The spelling of 5631382872 in words is "five billion, six hundred thirty-one million, three hundred eighty-two thousand, eight hundred seventy-two".