12426232957669 has 2 divisors, whose sum is σ = 12426232957670. Its totient is φ = 12426232957668.

The previous prime is 12426232957639. The next prime is 12426232957717. The reversal of 12426232957669 is 96675923262421.

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., 10525722569569 + 1900510388100 = 3244337^2 + 1378590^2 .

It is a cyclic number.

It is not a de Polignac number, because 12426232957669 - 2¹⁵ = 12426232924901 is a prime.

It is a super-2 number, since 2×12426232957669² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12426232957669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12426232957639) 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, 6213116478834 + 6213116478835.

It is an arithmetic number, because the mean of its divisors is an integer number (6213116478835).

Almost surely, 2^{12426232957669} is an apocalyptic number.

It is an amenable number.

12426232957669 is a deficient number, since it is larger than the sum of its proper divisors (1).

12426232957669 is an equidigital number, since it uses as much as digits as its factorization.

12426232957669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117573120, while the sum is 64.

The spelling of 12426232957669 in words is "twelve trillion, four hundred twenty-six billion, two hundred thirty-two million, nine hundred fifty-seven thousand, six hundred sixty-nine".