5245149168 has 280 divisors, whose sum is σ = 17551936128. Its totient is φ = 1486740096.

The previous prime is 5245149121. The next prime is 5245149181. The reversal of 5245149168 is 8619415425.

5245149168 is a `hidden beast` number, since 52 + 4 + 51 + 491 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 18533955 + ... + 18534237.

Almost surely, 2^5245149168 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 5245149168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8775968064).

5245149168 is an abundant number, since it is smaller than the sum of its proper divisors (12306786960).

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

5245149168 is a wasteful number, since it uses less digits than its factorization.

5245149168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 522 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 5245149168 is about 72423.4020741915. The cubic root of 5245149168 is about 1737.4778679306.

The spelling of 5245149168 in words is "five billion, two hundred forty-five million, one hundred forty-nine thousand, one hundred sixty-eight".