671383258813 has 2 divisors, whose sum is σ = 671383258814. Its totient is φ = 671383258812.

The previous prime is 671383258759. The next prime is 671383258907. The reversal of 671383258813 is 318852383176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 593351305849 + 78031952964 = 770293^2 + 279342^2 .

It is a cyclic number.

It is not a de Polignac number, because 671383258813 - 2³⁷ = 533944305341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671383258213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335691629406 + 335691629407.

It is an arithmetic number, because the mean of its divisors is an integer number (335691629407).

Almost surely, 2^671383258813 is an apocalyptic number.

It is an amenable number.

671383258813 is a deficient number, since it is larger than the sum of its proper divisors (1).

671383258813 is an equidigital number, since it uses as much as digits as its factorization.

671383258813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 55.

The spelling of 671383258813 in words is "six hundred seventy-one billion, three hundred eighty-three million, two hundred fifty-eight thousand, eight hundred thirteen".