523438834319 has 2 divisors, whose sum is σ = 523438834320. Its totient is φ = 523438834318.

The previous prime is 523438834309. The next prime is 523438834357. The reversal of 523438834319 is 913438834325.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523438834319 is a prime.

It is a super-2 number, since 2×523438834319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523438834309) 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, 261719417159 + 261719417160.

It is an arithmetic number, because the mean of its divisors is an integer number (261719417160).

Almost surely, 2^523438834319 is an apocalyptic number.

523438834319 is a deficient number, since it is larger than the sum of its proper divisors (1).

523438834319 is an equidigital number, since it uses as much as digits as its factorization.

523438834319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 53.

The spelling of 523438834319 in words is "five hundred twenty-three billion, four hundred thirty-eight million, eight hundred thirty-four thousand, three hundred nineteen".