54163081728 has 640 divisors, whose sum is σ = 195630336000. Its totient is φ = 14452162560.

The previous prime is 54163081723. The next prime is 54163081729. The reversal of 54163081728 is 82718036145.

54163081728 is a `hidden beast` number, since 5 + 4 + 1 + 630 + 8 + 1 + 7 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (54163081723) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163634523 + ... + 163634853.

It is an arithmetic number, because the mean of its divisors is an integer number (305672400).

Almost surely, 2^54163081728 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 54163081728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97815168000).

54163081728 is an abundant number, since it is smaller than the sum of its proper divisors (141467254272).

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

54163081728 is a wasteful number, since it uses less digits than its factorization.

54163081728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 54163081728 in words is "fifty-four billion, one hundred sixty-three million, eighty-one thousand, seven hundred twenty-eight".