12609261277937 has 2 divisors, whose sum is σ = 12609261277938. Its totient is φ = 12609261277936.

The previous prime is 12609261277919. The next prime is 12609261278011. The reversal of 12609261277937 is 73977216290621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12339932454976 + 269328822961 = 3512824^2 + 518969^2 .

It is a cyclic number.

It is not a de Polignac number, because 12609261277937 - 2⁸ = 12609261277681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12609261277937.

It is not a weakly prime, because it can be changed into another prime (12609261277537) 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, 6304630638968 + 6304630638969.

It is an arithmetic number, because the mean of its divisors is an integer number (6304630638969).

Almost surely, 2^{12609261277937} is an apocalyptic number.

It is an amenable number.

12609261277937 is a deficient number, since it is larger than the sum of its proper divisors (1).

12609261277937 is an equidigital number, since it uses as much as digits as its factorization.

12609261277937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The spelling of 12609261277937 in words is "twelve trillion, six hundred nine billion, two hundred sixty-one million, two hundred seventy-seven thousand, nine hundred thirty-seven".