217707048463 has 2 divisors, whose sum is σ = 217707048464. Its totient is φ = 217707048462.

The previous prime is 217707048457. The next prime is 217707048497. The reversal of 217707048463 is 364840707712.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 217707048463 - 2⁹ = 217707047951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217707048413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108853524231 + 108853524232.

It is an arithmetic number, because the mean of its divisors is an integer number (108853524232).

Almost surely, 2^217707048463 is an apocalyptic number.

217707048463 is a deficient number, since it is larger than the sum of its proper divisors (1).

217707048463 is an equidigital number, since it uses as much as digits as its factorization.

217707048463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 49.

The spelling of 217707048463 in words is "two hundred seventeen billion, seven hundred seven million, forty-eight thousand, four hundred sixty-three".