671342866018 has 8 divisors (see below), whose sum is σ = 1098561053520. Its totient is φ = 305155848180.

The previous prime is 671342865997. The next prime is 671342866021. The reversal of 671342866018 is 810668243176.

671342866018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-4 number, since 4×671342866018⁴ (a number of 48 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15257792388 + ... + 15257792431.

It is an arithmetic number, because the mean of its divisors is an integer number (137320131690).

Almost surely, 2^671342866018 is an apocalyptic number.

671342866018 is a deficient number, since it is larger than the sum of its proper divisors (427218187502).

671342866018 is a wasteful number, since it uses less digits than its factorization.

671342866018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30515584832.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 671342866018 in words is "six hundred seventy-one billion, three hundred forty-two million, eight hundred sixty-six thousand, eighteen".