438414288913 has 2 divisors, whose sum is σ = 438414288914. Its totient is φ = 438414288912.

The previous prime is 438414288899. The next prime is 438414288947. The reversal of 438414288913 is 319882414834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309549802384 + 128864486529 = 556372^2 + 358977^2 .

It is a cyclic number.

It is not a de Polignac number, because 438414288913 - 2²⁵ = 438380734481 is a prime.

It is not a weakly prime, because it can be changed into another prime (438414288953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219207144456 + 219207144457.

It is an arithmetic number, because the mean of its divisors is an integer number (219207144457).

Almost surely, 2^438414288913 is an apocalyptic number.

It is an amenable number.

438414288913 is a deficient number, since it is larger than the sum of its proper divisors (1).

438414288913 is an equidigital number, since it uses as much as digits as its factorization.

438414288913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 55.

The spelling of 438414288913 in words is "four hundred thirty-eight billion, four hundred fourteen million, two hundred eighty-eight thousand, nine hundred thirteen".