212646953413 has 2 divisors, whose sum is σ = 212646953414. Its totient is φ = 212646953412.

The previous prime is 212646953411. The next prime is 212646953417. The reversal of 212646953413 is 314359646212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163654229764 + 48992723649 = 404542^2 + 221343^2 .

It is a cyclic number.

It is not a de Polignac number, because 212646953413 - 2¹ = 212646953411 is a prime.

Together with 212646953411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212646953411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106323476706 + 106323476707.

It is an arithmetic number, because the mean of its divisors is an integer number (106323476707).

Almost surely, 2^212646953413 is an apocalyptic number.

It is an amenable number.

212646953413 is a deficient number, since it is larger than the sum of its proper divisors (1).

212646953413 is an equidigital number, since it uses as much as digits as its factorization.

212646953413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The spelling of 212646953413 in words is "two hundred twelve billion, six hundred forty-six million, nine hundred fifty-three thousand, four hundred thirteen".