671344746617 has 2 divisors, whose sum is σ = 671344746618. Its totient is φ = 671344746616.

The previous prime is 671344746587. The next prime is 671344746629. The reversal of 671344746617 is 716647443176.

671344746617 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 can be written as a sum of positive squares in only one way, i.e., 489984600121 + 181360146496 = 699989^2 + 425864^2 .

It is a cyclic number.

It is not a de Polignac number, because 671344746617 - 2¹² = 671344742521 is a prime.

It is not a weakly prime, because it can be changed into another prime (671344746637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335672373308 + 335672373309.

It is an arithmetic number, because the mean of its divisors is an integer number (335672373309).

Almost surely, 2^671344746617 is an apocalyptic number.

It is an amenable number.

671344746617 is a deficient number, since it is larger than the sum of its proper divisors (1).

671344746617 is an equidigital number, since it uses as much as digits as its factorization.

671344746617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 56.

The spelling of 671344746617 in words is "six hundred seventy-one billion, three hundred forty-four million, seven hundred forty-six thousand, six hundred seventeen".