4891868168 has 64 divisors (see below), whose sum is σ = 10274584320. Its totient is φ = 2164276800.

The previous prime is 4891868129. The next prime is 4891868171. The reversal of 4891868168 is 8618681984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159583 + ... + 1163793.

It is an arithmetic number, because the mean of its divisors is an integer number (160540380).

Almost surely, 2^4891868168 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 4891868168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5137292160).

4891868168 is an abundant number, since it is smaller than the sum of its proper divisors (5382716152).

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

4891868168 is a wasteful number, since it uses less digits than its factorization.

4891868168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578 (or 4574 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 59.

The square root of 4891868168 is about 69941.8913670484. The cubic root of 4891868168 is about 1697.5591462434.

The spelling of 4891868168 in words is "four billion, eight hundred ninety-one million, eight hundred sixty-eight thousand, one hundred sixty-eight".