212644106432413 has 2 divisors, whose sum is σ = 212644106432414. Its totient is φ = 212644106432412.

The previous prime is 212644106432369. The next prime is 212644106432477. The reversal of 212644106432413 is 314234601446212.

212644106432413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151416642691609 + 61227463740804 = 12305147^2 + 7824798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212644106432413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212644106432413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212644106432213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106322053216206 + 106322053216207.

It is an arithmetic number, because the mean of its divisors is an integer number (106322053216207).

Almost surely, 2^{212644106432413} is an apocalyptic number.

It is an amenable number.

212644106432413 is a deficient number, since it is larger than the sum of its proper divisors (1).

212644106432413 is an equidigital number, since it uses as much as digits as its factorization.

212644106432413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 43.

Adding to 212644106432413 its reverse (314234601446212), we get a palindrome (526878707878625).

The spelling of 212644106432413 in words is "two hundred twelve trillion, six hundred forty-four billion, one hundred six million, four hundred thirty-two thousand, four hundred thirteen".