217705975331483 has 2 divisors, whose sum is σ = 217705975331484. Its totient is φ = 217705975331482.

The previous prime is 217705975331441. The next prime is 217705975331497. The reversal of 217705975331483 is 384133579507712.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 217705975331483 - 2³² = 217701680364187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (217705975331413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108852987665741 + 108852987665742.

It is an arithmetic number, because the mean of its divisors is an integer number (108852987665742).

Almost surely, 2^{217705975331483} is an apocalyptic number.

217705975331483 is a deficient number, since it is larger than the sum of its proper divisors (1).

217705975331483 is an equidigital number, since it uses as much as digits as its factorization.

217705975331483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 133358400, while the sum is 65.

The spelling of 217705975331483 in words is "two hundred seventeen trillion, seven hundred five billion, nine hundred seventy-five million, three hundred thirty-one thousand, four hundred eighty-three".