671142916984 has 16 divisors (see below), whose sum is σ = 1263888138600. Its totient is φ = 334106080032.

The previous prime is 671142916973. The next prime is 671142916987. The reversal of 671142916984 is 489619241176.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671142916987) 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 3 ways as a sum of consecutive naturals, for example, 183170362 + ... + 183174025.

Almost surely, 2^671142916984 is an apocalyptic number.

It is an amenable number.

671142916984 is a deficient number, since it is larger than the sum of its proper divisors (592745221616).

671142916984 is a wasteful number, since it uses less digits than its factorization.

671142916984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366344622 (or 366344618 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 58.

The spelling of 671142916984 in words is "six hundred seventy-one billion, one hundred forty-two million, nine hundred sixteen thousand, nine hundred eighty-four".