4686413195509 has 2 divisors, whose sum is σ = 4686413195510. Its totient is φ = 4686413195508.

The previous prime is 4686413195507. The next prime is 4686413195537. The reversal of 4686413195509 is 9055913146864.

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., 4684965012484 + 1448183025 = 2164478^2 + 38055^2 .

It is a cyclic number.

It is not a de Polignac number, because 4686413195509 - 2¹ = 4686413195507 is a prime.

Together with 4686413195507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4686413195507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343206597754 + 2343206597755.

It is an arithmetic number, because the mean of its divisors is an integer number (2343206597755).

Almost surely, 2^{4686413195509} is an apocalyptic number.

It is an amenable number.

4686413195509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4686413195509 is an equidigital number, since it uses as much as digits as its factorization.

4686413195509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 4686413195509 in words is "four trillion, six hundred eighty-six billion, four hundred thirteen million, one hundred ninety-five thousand, five hundred nine".