5481689472 has 256 divisors, whose sum is σ = 18571507200. Its totient is φ = 1559291904.

The previous prime is 5481689419. The next prime is 5481689489. The reversal of 5481689472 is 2749861845.

It is a happy number.

5481689472 is a `hidden beast` number, since 5 + 4 + 8 + 168 + 9 + 472 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8394298 + ... + 8394950.

It is an arithmetic number, because the mean of its divisors is an integer number (72544950).

Almost surely, 2^5481689472 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 5481689472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9285753600).

5481689472 is an abundant number, since it is smaller than the sum of its proper divisors (13089817728).

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

5481689472 is a wasteful number, since it uses less digits than its factorization.

5481689472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1012 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 5481689472 is about 74038.4323983159. The cubic root of 5481689472 is about 1763.2131249140.

The spelling of 5481689472 in words is "five billion, four hundred eighty-one million, six hundred eighty-nine thousand, four hundred seventy-two".