12885448187329 has 2 divisors, whose sum is σ = 12885448187330. Its totient is φ = 12885448187328.

The previous prime is 12885448187309. The next prime is 12885448187363. The reversal of 12885448187329 is 92378184458821.

12885448187329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10627860801600 + 2257587385729 = 3260040^2 + 1502527^2 .

It is a cyclic number.

It is not a de Polignac number, because 12885448187329 - 2¹³ = 12885448179137 is a prime.

It is not a weakly prime, because it can be changed into another prime (12885448187309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6442724093664 + 6442724093665.

It is an arithmetic number, because the mean of its divisors is an integer number (6442724093665).

Almost surely, 2^{12885448187329} is an apocalyptic number.

It is an amenable number.

12885448187329 is a deficient number, since it is larger than the sum of its proper divisors (1).

12885448187329 is an equidigital number, since it uses as much as digits as its factorization.

12885448187329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 247726080, while the sum is 70.

The spelling of 12885448187329 in words is "twelve trillion, eight hundred eighty-five billion, four hundred forty-eight million, one hundred eighty-seven thousand, three hundred twenty-nine".