212087473163639 has 2 divisors, whose sum is σ = 212087473163640. Its totient is φ = 212087473163638.

The previous prime is 212087473163603. The next prime is 212087473163651. The reversal of 212087473163639 is 936361374780212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212087473163639 - 2¹⁶ = 212087473098103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212087473163669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106043736581819 + 106043736581820.

It is an arithmetic number, because the mean of its divisors is an integer number (106043736581820).

Almost surely, 2^{212087473163639} is an apocalyptic number.

212087473163639 is a deficient number, since it is larger than the sum of its proper divisors (1).

212087473163639 is an equidigital number, since it uses as much as digits as its factorization.

212087473163639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 212087473163639 in words is "two hundred twelve trillion, eighty-seven billion, four hundred seventy-three million, one hundred sixty-three thousand, six hundred thirty-nine".