214216213693 has 2 divisors, whose sum is σ = 214216213694. Its totient is φ = 214216213692.

The previous prime is 214216213691. The next prime is 214216213703. The reversal of 214216213693 is 396312612412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199825092324 + 14391121369 = 447018^2 + 119963^2 .

It is a cyclic number.

It is not a de Polignac number, because 214216213693 - 2¹ = 214216213691 is a prime.

Together with 214216213691, 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 (214216213691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107108106846 + 107108106847.

It is an arithmetic number, because the mean of its divisors is an integer number (107108106847).

Almost surely, 2^214216213693 is an apocalyptic number.

It is an amenable number.

214216213693 is a deficient number, since it is larger than the sum of its proper divisors (1).

214216213693 is an equidigital number, since it uses as much as digits as its factorization.

214216213693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The spelling of 214216213693 in words is "two hundred fourteen billion, two hundred sixteen million, two hundred thirteen thousand, six hundred ninety-three".