671631228017 has 2 divisors, whose sum is σ = 671631228018. Its totient is φ = 671631228016.

The previous prime is 671631228007. The next prime is 671631228101. The reversal of 671631228017 is 710822136176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 554546813041 + 117084414976 = 744679^2 + 342176^2 .

It is a cyclic number.

It is not a de Polignac number, because 671631228017 - 2¹⁶ = 671631162481 is a prime.

It is not a weakly prime, because it can be changed into another prime (671631228007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335815614008 + 335815614009.

It is an arithmetic number, because the mean of its divisors is an integer number (335815614009).

Almost surely, 2^671631228017 is an apocalyptic number.

It is an amenable number.

671631228017 is a deficient number, since it is larger than the sum of its proper divisors (1).

671631228017 is an equidigital number, since it uses as much as digits as its factorization.

671631228017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 671631228017 in words is "six hundred seventy-one billion, six hundred thirty-one million, two hundred twenty-eight thousand, seventeen".