4491867563 has 2 divisors, whose sum is σ = 4491867564. Its totient is φ = 4491867562.

The previous prime is 4491867559. The next prime is 4491867571. The reversal of 4491867563 is 3657681944.

4491867563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4491867563 - 2² = 4491867559 is a prime.

It is not a weakly prime, because it can be changed into another prime (4491860563) 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 as a sum of consecutive naturals, namely, 2245933781 + 2245933782.

It is an arithmetic number, because the mean of its divisors is an integer number (2245933782).

Almost surely, 2^4491867563 is an apocalyptic number.

4491867563 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491867563 is an equidigital number, since it uses as much as digits as its factorization.

4491867563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The square root of 4491867563 is about 67021.3963074480. The cubic root of 4491867563 is about 1649.9684797162.

The spelling of 4491867563 in words is "four billion, four hundred ninety-one million, eight hundred sixty-seven thousand, five hundred sixty-three".