671194884445 has 8 divisors (see below), whose sum is σ = 806760774144. Its totient is φ = 536071299024.

The previous prime is 671194884443. The next prime is 671194884449. The reversal of 671194884445 is 544488491176.

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 671194884445 - 2¹ = 671194884443 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 (671194884443) 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 7 ways as a sum of consecutive naturals, for example, 110572729 + ... + 110578798.

It is an arithmetic number, because the mean of its divisors is an integer number (100845096768).

Almost surely, 2^671194884445 is an apocalyptic number.

It is an amenable number.

671194884445 is a deficient number, since it is larger than the sum of its proper divisors (135565889699).

671194884445 is a wasteful number, since it uses less digits than its factorization.

671194884445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221152139.

The product of its digits is 30965760, while the sum is 61.

The spelling of 671194884445 in words is "six hundred seventy-one billion, one hundred ninety-four million, eight hundred eighty-four thousand, four hundred forty-five".