16384937433439 has 2 divisors, whose sum is σ = 16384937433440. Its totient is φ = 16384937433438.

The previous prime is 16384937433379. The next prime is 16384937433509. The reversal of 16384937433439 is 93433473948361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16384937433439 - 2²³ = 16384929044831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16384937439439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8192468716719 + 8192468716720.

It is an arithmetic number, because the mean of its divisors is an integer number (8192468716720).

Almost surely, 2^{16384937433439} is an apocalyptic number.

16384937433439 is a deficient number, since it is larger than the sum of its proper divisors (1).

16384937433439 is an equidigital number, since it uses as much as digits as its factorization.

16384937433439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423263232, while the sum is 67.

The spelling of 16384937433439 in words is "sixteen trillion, three hundred eighty-four billion, nine hundred thirty-seven million, four hundred thirty-three thousand, four hundred thirty-nine".