671842242041 has 8 divisors (see below), whose sum is σ = 687588468864. Its totient is φ = 656101560240.

The previous prime is 671842242037. The next prime is 671842242047. The reversal of 671842242041 is 140242248176.

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 671842242041 - 2² = 671842242037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 671842242041.

It is not an unprimeable number, because it can be changed into a prime (671842242047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140590 + ... + 1626231.

It is an arithmetic number, because the mean of its divisors is an integer number (85948558608).

Almost surely, 2^671842242041 is an apocalyptic number.

It is an amenable number.

671842242041 is a deficient number, since it is larger than the sum of its proper divisors (15746226823).

671842242041 is a wasteful number, since it uses less digits than its factorization.

671842242041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772511.

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 671842242041 in words is "six hundred seventy-one billion, eight hundred forty-two million, two hundred forty-two thousand, forty-one".