5481909888 has 384 divisors, whose sum is σ = 18551776320. Its totient is φ = 1421328384.

The previous prime is 5481909883. The next prime is 5481909919. The reversal of 5481909888 is 8889091845.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (5481909883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17856231 + ... + 17856537.

Almost surely, 2^5481909888 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 5481909888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9275888160).

5481909888 is an abundant number, since it is smaller than the sum of its proper divisors (13069866432).

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

5481909888 is a wasteful number, since it uses less digits than its factorization.

5481909888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 60.

The square root of 5481909888 is about 74039.9209075753. The cubic root of 5481909888 is about 1763.2367572374.

The spelling of 5481909888 in words is "five billion, four hundred eighty-one million, nine hundred nine thousand, eight hundred eighty-eight".