671873570343 has 16 divisors (see below), whose sum is σ = 1009387526400. Its totient is φ = 441607040280.

The previous prime is 671873570339. The next prime is 671873570353. The reversal of 671873570343 is 343075378176.

671873570343 is a `hidden beast` number, since 67 + 1 + 8 + 7 + 3 + 570 + 3 + 4 + 3 = 666.

671873570343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 671873570343 - 2² = 671873570339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671873570343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671873570353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175238973 + ... + 175242806.

It is an arithmetic number, because the mean of its divisors is an integer number (63086720400).

Almost surely, 2^671873570343 is an apocalyptic number.

671873570343 is a deficient number, since it is larger than the sum of its proper divisors (337513956057).

671873570343 is a wasteful number, since it uses less digits than its factorization.

671873570343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350481859 (or 350481853 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 671873570343 in words is "six hundred seventy-one billion, eight hundred seventy-three million, five hundred seventy thousand, three hundred forty-three".