12417217429 has 2 divisors, whose sum is σ = 12417217430. Its totient is φ = 12417217428.

The previous prime is 12417217409. The next prime is 12417217441. The reversal of 12417217429 is 92471271421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10983459204 + 1433758225 = 104802^2 + 37865^2 .

It is a cyclic number.

It is not a de Polignac number, because 12417217429 - 2⁷ = 12417217301 is a prime.

It is a super-2 number, since 2×12417217429² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12417217391 and 12417217400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12417217409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6208608714 + 6208608715.

It is an arithmetic number, because the mean of its divisors is an integer number (6208608715).

Almost surely, 2^12417217429 is an apocalyptic number.

It is an amenable number.

12417217429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12417217429 is an equidigital number, since it uses as much as digits as its factorization.

12417217429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The spelling of 12417217429 in words is "twelve billion, four hundred seventeen million, two hundred seventeen thousand, four hundred twenty-nine".