4891506673 has 4 divisors (see below), whose sum is σ = 4891779748. Its totient is φ = 4891233600.

The previous prime is 4891506637. The next prime is 4891506677. The reversal of 4891506673 is 3766051984.

4891506673 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3106613169 + 1784893504 = 55737^2 + 42248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4891506673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4891506677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107628 + ... + 146173.

It is an arithmetic number, because the mean of its divisors is an integer number (1222944937).

Almost surely, 2^4891506673 is an apocalyptic number.

It is an amenable number.

4891506673 is a deficient number, since it is larger than the sum of its proper divisors (273075).

4891506673 is a wasteful number, since it uses less digits than its factorization.

4891506673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273074.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 4891506673 is about 69939.3070669134. The cubic root of 4891506673 is about 1697.5173302991.

The spelling of 4891506673 in words is "four billion, eight hundred ninety-one million, five hundred six thousand, six hundred seventy-three".