4891189518 has 12 divisors (see below), whose sum is σ = 10597577328. Its totient is φ = 1630396500.

The previous prime is 4891189487. The next prime is 4891189529. The reversal of 4891189518 is 8159811984.

4891189518 is a `hidden beast` number, since 4 + 8 + 9 + 118 + 9 + 518 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135866358 + ... + 135866393.

It is an arithmetic number, because the mean of its divisors is an integer number (883131444).

Almost surely, 2^4891189518 is an apocalyptic number.

4891189518 is an abundant number, since it is smaller than the sum of its proper divisors (5706387810).

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

4891189518 is a wasteful number, since it uses less digits than its factorization.

4891189518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271732759 (or 271732756 counting only the distinct ones).

The product of its digits is 829440, while the sum is 54.

The square root of 4891189518 is about 69937.0396714073. The cubic root of 4891189518 is about 1697.4806416889.

The spelling of 4891189518 in words is "four billion, eight hundred ninety-one million, one hundred eighty-nine thousand, five hundred eighteen".