671815422472 has 16 divisors (see below), whose sum is σ = 1259779046400. Its totient is φ = 335874343440.

The previous prime is 671815422469. The next prime is 671815422557. The reversal of 671815422472 is 274224518176.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4085304 + ... + 4246567.

It is an arithmetic number, because the mean of its divisors is an integer number (78736190400).

Almost surely, 2^671815422472 is an apocalyptic number.

It is an amenable number.

671815422472 is a deficient number, since it is larger than the sum of its proper divisors (587963623928).

671815422472 is a wasteful number, since it uses less digits than its factorization.

671815422472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341956 (or 8341952 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The spelling of 671815422472 in words is "six hundred seventy-one billion, eight hundred fifteen million, four hundred twenty-two thousand, four hundred seventy-two".