208471488671 has 2 divisors, whose sum is σ = 208471488672. Its totient is φ = 208471488670.

The previous prime is 208471488601. The next prime is 208471488769. The reversal of 208471488671 is 176884174802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208471488671 - 2¹⁸ = 208471226527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208471488601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104235744335 + 104235744336.

It is an arithmetic number, because the mean of its divisors is an integer number (104235744336).

Almost surely, 2^208471488671 is an apocalyptic number.

208471488671 is a deficient number, since it is larger than the sum of its proper divisors (1).

208471488671 is an equidigital number, since it uses as much as digits as its factorization.

208471488671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4816896, while the sum is 56.

The spelling of 208471488671 in words is "two hundred eight billion, four hundred seventy-one million, four hundred eighty-eight thousand, six hundred seventy-one".