217296420676763 has 2 divisors, whose sum is σ = 217296420676764. Its totient is φ = 217296420676762.

The previous prime is 217296420676681. The next prime is 217296420676781. The reversal of 217296420676763 is 367676024692712.

217296420676763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 217296420676763 - 2³² = 217292125709467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 217296420676693 and 217296420676702.

It is not a weakly prime, because it can be changed into another prime (217296420876763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108648210338381 + 108648210338382.

It is an arithmetic number, because the mean of its divisors is an integer number (108648210338382).

Almost surely, 2^{217296420676763} is an apocalyptic number.

217296420676763 is a deficient number, since it is larger than the sum of its proper divisors (1).

217296420676763 is an equidigital number, since it uses as much as digits as its factorization.

217296420676763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384072192, while the sum is 68.

The spelling of 217296420676763 in words is "two hundred seventeen trillion, two hundred ninety-six billion, four hundred twenty million, six hundred seventy-six thousand, seven hundred sixty-three".