12387835069 has 2 divisors, whose sum is σ = 12387835070. Its totient is φ = 12387835068.

The previous prime is 12387835027. The next prime is 12387835139. The reversal of 12387835069 is 96053878321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7355635225 + 5032199844 = 85765^2 + 70938^2 .

It is an emirp because it is prime and its reverse (96053878321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12387835069 - 2¹⁹ = 12387310781 is a prime.

It is a super-2 number, since 2×12387835069² (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 (12387835169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6193917534 + 6193917535.

It is an arithmetic number, because the mean of its divisors is an integer number (6193917535).

Almost surely, 2^12387835069 is an apocalyptic number.

It is an amenable number.

12387835069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12387835069 is an equidigital number, since it uses as much as digits as its factorization.

12387835069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 12387835069 in words is "twelve billion, three hundred eighty-seven million, eight hundred thirty-five thousand, sixty-nine".