5281644480 has 224 divisors, whose sum is σ = 19382353920. Its totient is φ = 1193533440.

The previous prime is 5281644479. The next prime is 5281644481. The reversal of 5281644480 is 844461825.

It is an interprime number because it is at equal distance from previous prime (5281644479) and next prime (5281644481).

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×5281644480² = 55791536826228940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5281644481) 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, 593665 + ... + 602495.

Almost surely, 2^5281644480 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 5281644480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9691176960).

5281644480 is an abundant number, since it is smaller than the sum of its proper divisors (14100709440).

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

5281644480 is a wasteful number, since it uses less digits than its factorization.

5281644480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8947 (or 8937 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 5281644480 is about 72674.9233229730. The cubic root of 5281644480 is about 1741.4982998905.

The spelling of 5281644480 in words is "five billion, two hundred eighty-one million, six hundred forty-four thousand, four hundred eighty".