5647451328 has 224 divisors, whose sum is σ = 16994672640. Its totient is φ = 1838592000.

The previous prime is 5647451321. The next prime is 5647451351. The reversal of 5647451328 is 8231547465.

5647451328 is a `hidden beast` number, since 5 + 64 + 74 + 513 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5647451321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23433288 + ... + 23433528.

Almost surely, 2^5647451328 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 5647451328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8497336320).

5647451328 is an abundant number, since it is smaller than the sum of its proper divisors (11347221312).

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

5647451328 is a wasteful number, since it uses less digits than its factorization.

5647451328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 508 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 5647451328 is about 75149.5264655740. The cubic root of 5647451328 is about 1780.8096438765.

The spelling of 5647451328 in words is "five billion, six hundred forty-seven million, four hundred fifty-one thousand, three hundred twenty-eight".