4891604049 has 24 divisors (see below), whose sum is σ = 7298553600. Its totient is φ = 3153719520.

The previous prime is 4891604041. The next prime is 4891604071. The reversal of 4891604049 is 9404061984.

4891604049 is a `hidden beast` number, since 4 + 89 + 160 + 404 + 9 = 666.

It is not a de Polignac number, because 4891604049 - 2³ = 4891604041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4891603995 and 4891604013.

It is not an unprimeable number, because it can be changed into a prime (4891604041) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 471682 + ... + 481940.

It is an arithmetic number, because the mean of its divisors is an integer number (304106400).

Almost surely, 2^4891604049 is an apocalyptic number.

It is an amenable number.

4891604049 is a deficient number, since it is larger than the sum of its proper divisors (2406949551).

4891604049 is a wasteful number, since it uses less digits than its factorization.

4891604049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12005 (or 12002 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 4891604049 is about 69940.0032098941. The cubic root of 4891604049 is about 1697.5285944734.

The spelling of 4891604049 in words is "four billion, eight hundred ninety-one million, six hundred four thousand, forty-nine".