5487968813 has 2 divisors, whose sum is σ = 5487968814. Its totient is φ = 5487968812.

The previous prime is 5487968807. The next prime is 5487968897. The reversal of 5487968813 is 3188697845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3569704009 + 1918264804 = 59747^2 + 43798^2 .

It is a cyclic number.

It is not a de Polignac number, because 5487968813 - 2⁶ = 5487968749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5487968513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2743984406 + 2743984407.

It is an arithmetic number, because the mean of its divisors is an integer number (2743984407).

Almost surely, 2^5487968813 is an apocalyptic number.

It is an amenable number.

5487968813 is a deficient number, since it is larger than the sum of its proper divisors (1).

5487968813 is an equidigital number, since it uses as much as digits as its factorization.

5487968813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 59.

The square root of 5487968813 is about 74080.8262170449. The cubic root of 5487968813 is about 1763.8861285916.

The spelling of 5487968813 in words is "five billion, four hundred eighty-seven million, nine hundred sixty-eight thousand, eight hundred thirteen".