217700095313 has 2 divisors, whose sum is σ = 217700095314. Its totient is φ = 217700095312.

The previous prime is 217700095279. The next prime is 217700095363. The reversal of 217700095313 is 313590007712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217699695889 + 399424 = 466583^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 217700095313 - 2⁸ = 217700095057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (217700095363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108850047656 + 108850047657.

It is an arithmetic number, because the mean of its divisors is an integer number (108850047657).

Almost surely, 2^217700095313 is an apocalyptic number.

It is an amenable number.

217700095313 is a deficient number, since it is larger than the sum of its proper divisors (1).

217700095313 is an equidigital number, since it uses as much as digits as its factorization.

217700095313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 38.

The spelling of 217700095313 in words is "two hundred seventeen billion, seven hundred million, ninety-five thousand, three hundred thirteen".