5489648640 has 880 divisors, whose sum is σ = 23587728384. Its totient is φ = 1194393600.

The previous prime is 5489648623. The next prime is 5489648669. The reversal of 5489648640 is 468469845.

5489648640 is a `hidden beast` number, since 548 + 96 + 4 + 8 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 89994210 + ... + 89994270.

Almost surely, 2^5489648640 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 5489648640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11793864192).

5489648640 is an abundant number, since it is smaller than the sum of its proper divisors (18098079744).

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

5489648640 is a wasteful number, since it uses less digits than its factorization.

5489648640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The square root of 5489648640 is about 74092.1631483384. The cubic root of 5489648640 is about 1764.0660811008.

The spelling of 5489648640 in words is "five billion, four hundred eighty-nine million, six hundred forty-eight thousand, six hundred forty".