213617716327 has 2 divisors, whose sum is σ = 213617716328. Its totient is φ = 213617716326.

The previous prime is 213617716309. The next prime is 213617716337. The reversal of 213617716327 is 723617716312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213617716327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213617716337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106808858163 + 106808858164.

It is an arithmetic number, because the mean of its divisors is an integer number (106808858164).

Almost surely, 2^213617716327 is an apocalyptic number.

213617716327 is a deficient number, since it is larger than the sum of its proper divisors (1).

213617716327 is an equidigital number, since it uses as much as digits as its factorization.

213617716327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 46.

The spelling of 213617716327 in words is "two hundred thirteen billion, six hundred seventeen million, seven hundred sixteen thousand, three hundred twenty-seven".