243627433213 has 2 divisors, whose sum is σ = 243627433214. Its totient is φ = 243627433212.

The previous prime is 243627433199. The next prime is 243627433237. The reversal of 243627433213 is 312334726342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128165432004 + 115462001209 = 358002^2 + 339797^2 .

It is a cyclic number.

It is not a de Polignac number, because 243627433213 - 2¹³ = 243627425021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243627433243) 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, 121813716606 + 121813716607.

It is an arithmetic number, because the mean of its divisors is an integer number (121813716607).

Almost surely, 2^243627433213 is an apocalyptic number.

It is an amenable number.

243627433213 is a deficient number, since it is larger than the sum of its proper divisors (1).

243627433213 is an equidigital number, since it uses as much as digits as its factorization.

243627433213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 40.

The spelling of 243627433213 in words is "two hundred forty-three billion, six hundred twenty-seven million, four hundred thirty-three thousand, two hundred thirteen".