11523536440439 has 2 divisors, whose sum is σ = 11523536440440. Its totient is φ = 11523536440438.

The previous prime is 11523536440387. The next prime is 11523536440453. The reversal of 11523536440439 is 93404463532511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11523536440439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11523536440469) 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, 5761768220219 + 5761768220220.

It is an arithmetic number, because the mean of its divisors is an integer number (5761768220220).

Almost surely, 2^{11523536440439} is an apocalyptic number.

11523536440439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11523536440439 is an equidigital number, since it uses as much as digits as its factorization.

11523536440439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 11523536440439 in words is "eleven trillion, five hundred twenty-three billion, five hundred thirty-six million, four hundred forty thousand, four hundred thirty-nine".