4894804991 has 4 divisors (see below), whose sum is σ = 5063591400. Its totient is φ = 4726018584.

The previous prime is 4894804973. The next prime is 4894805011. The reversal of 4894804991 is 1994084984.

4894804991 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 is a cyclic number.

It is not a de Polignac number, because 4894804991 - 2¹⁰ = 4894803967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4894804931) 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, 84393161 + ... + 84393218.

It is an arithmetic number, because the mean of its divisors is an integer number (1265897850).

Almost surely, 2^4894804991 is an apocalyptic number.

4894804991 is a deficient number, since it is larger than the sum of its proper divisors (168786409).

4894804991 is a wasteful number, since it uses less digits than its factorization.

4894804991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168786408.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 4894804991 is about 69962.8829523198. The cubic root of 4894804991 is about 1697.8987869997.

The spelling of 4894804991 in words is "four billion, eight hundred ninety-four million, eight hundred four thousand, nine hundred ninety-one".