671871646367 has 8 divisors (see below), whose sum is σ = 712286111376. Its totient is φ = 631556359552.

The previous prime is 671871646361. The next prime is 671871646393. The reversal of 671871646367 is 763646178176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671871646367 - 2⁴ = 671871646351 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 (671871646361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24780593 + ... + 24807690.

It is an arithmetic number, because the mean of its divisors is an integer number (89035763922).

Almost surely, 2^671871646367 is an apocalyptic number.

671871646367 is a deficient number, since it is larger than the sum of its proper divisors (40414465009).

671871646367 is a wasteful number, since it uses less digits than its factorization.

671871646367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49589097.

The product of its digits is 42674688, while the sum is 62.

The spelling of 671871646367 in words is "six hundred seventy-one billion, eight hundred seventy-one million, six hundred forty-six thousand, three hundred sixty-seven".