214664546309 has 2 divisors, whose sum is σ = 214664546310. Its totient is φ = 214664546308.

The previous prime is 214664546269. The next prime is 214664546311. The reversal of 214664546309 is 903645466412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132124980100 + 82539566209 = 363490^2 + 287297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214664546309 is a prime.

Together with 214664546311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214664546339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107332273154 + 107332273155.

It is an arithmetic number, because the mean of its divisors is an integer number (107332273155).

Almost surely, 2^214664546309 is an apocalyptic number.

It is an amenable number.

214664546309 is a deficient number, since it is larger than the sum of its proper divisors (1).

214664546309 is an equidigital number, since it uses as much as digits as its factorization.

214664546309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 214664546309 in words is "two hundred fourteen billion, six hundred sixty-four million, five hundred forty-six thousand, three hundred nine".