5478186168 has 384 divisors, whose sum is σ = 19152806400. Its totient is φ = 1428420096.

The previous prime is 5478186157. The next prime is 5478186179. The reversal of 5478186168 is 8616818745.

It is a happy number.

5478186168 is a `hidden beast` number, since 5 + 4 + 7 + 8 + 18 + 616 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (5478186157) and next prime (5478186179).

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 95 ways as a sum of consecutive naturals, for example, 30604303 + ... + 30604481.

It is an arithmetic number, because the mean of its divisors is an integer number (49877100).

Almost surely, 2^5478186168 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 5478186168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9576403200).

5478186168 is an abundant number, since it is smaller than the sum of its proper divisors (13674620232).

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

5478186168 is a wasteful number, since it uses less digits than its factorization.

5478186168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 377 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 5478186168 is about 74014.7699314130. The cubic root of 5478186168 is about 1762.8374263878.

The spelling of 5478186168 in words is "five billion, four hundred seventy-eight million, one hundred eighty-six thousand, one hundred sixty-eight".