12435688868117 has 4 divisors (see below), whose sum is σ = 12463385280300. Its totient is φ = 12407992455936.

The previous prime is 12435688868089. The next prime is 12435688868131. The reversal of 12435688868117 is 71186888653421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10523445168196 + 1912243699921 = 3243986^2 + 1382839^2 .

It is a cyclic number.

It is not a de Polignac number, because 12435688868117 - 2²² = 12435684673813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12435688862117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13848205418 + ... + 13848206315.

It is an arithmetic number, because the mean of its divisors is an integer number (3115846320075).

Almost surely, 2^{12435688868117} is an apocalyptic number.

It is an amenable number.

12435688868117 is a deficient number, since it is larger than the sum of its proper divisors (27696412183).

12435688868117 is an equidigital number, since it uses as much as digits as its factorization.

12435688868117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696412182.

The product of its digits is 123863040, while the sum is 68.

The spelling of 12435688868117 in words is "twelve trillion, four hundred thirty-five billion, six hundred eighty-eight million, eight hundred sixty-eight thousand, one hundred seventeen".