4491346813 has 2 divisors, whose sum is σ = 4491346814. Its totient is φ = 4491346812.

The previous prime is 4491346771. The next prime is 4491346877. The reversal of 4491346813 is 3186431944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3106167289 + 1385179524 = 55733^2 + 37218^2 .

It is a cyclic number.

It is not a de Polignac number, because 4491346813 - 2²⁹ = 3954475901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4491346813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4491346513) 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 as a sum of consecutive naturals, namely, 2245673406 + 2245673407.

It is an arithmetic number, because the mean of its divisors is an integer number (2245673407).

Almost surely, 2^4491346813 is an apocalyptic number.

It is an amenable number.

4491346813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4491346813 is an equidigital number, since it uses as much as digits as its factorization.

4491346813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 4491346813 is about 67017.5112414658. The cubic root of 4491346813 is about 1649.9047160159.

The spelling of 4491346813 in words is "four billion, four hundred ninety-one million, three hundred forty-six thousand, eight hundred thirteen".