671341233861 has 12 divisors (see below), whose sum is σ = 1005630490592. Its totient is φ = 447560822412.

The previous prime is 671341233847. The next prime is 671341233887. The reversal of 671341233861 is 168332143176.

671341233861 is a `hidden beast` number, since 6 + 71 + 341 + 233 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 671341233861 - 2²² = 671337039557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671341233841) 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 in 11 ways as a sum of consecutive naturals, for example, 1381360321 + ... + 1381360806.

Almost surely, 2^671341233861 is an apocalyptic number.

It is an amenable number.

671341233861 is a deficient number, since it is larger than the sum of its proper divisors (334289256731).

671341233861 is an equidigital number, since it uses as much as digits as its factorization.

671341233861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762721142 (or 2762721130 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 671341233861 in words is "six hundred seventy-one billion, three hundred forty-one million, two hundred thirty-three thousand, eight hundred sixty-one".