12595669381 has 2 divisors, whose sum is σ = 12595669382. Its totient is φ = 12595669380.

The previous prime is 12595669357. The next prime is 12595669451. The reversal of 12595669381 is 18396659521.

12595669381 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., 11166148900 + 1429520481 = 105670^2 + 37809^2 .

It is an emirp because it is prime and its reverse (18396659521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12595669381 is a prime.

It is a super-2 number, since 2×12595669381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12595669321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6297834690 + 6297834691.

It is an arithmetic number, because the mean of its divisors is an integer number (6297834691).

Almost surely, 2^12595669381 is an apocalyptic number.

It is an amenable number.

12595669381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12595669381 is an equidigital number, since it uses as much as digits as its factorization.

12595669381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 55.

The spelling of 12595669381 in words is "twelve billion, five hundred ninety-five million, six hundred sixty-nine thousand, three hundred eighty-one".