671272544800 has 144 divisors (see below), whose sum is σ = 1925238151872. Its totient is φ = 225322214400.

The previous prime is 671272544779. The next prime is 671272544801. The reversal of 671272544800 is 8445272176.

It is not an unprimeable number, because it can be changed into a prime (671272544801) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2819484 + ... + 3048283.

It is an arithmetic number, because the mean of its divisors is an integer number (13369709388).

Almost surely, 2^671272544800 is an apocalyptic number.

It is an amenable number.

671272544800 is an abundant number, since it is smaller than the sum of its proper divisors (1253965607072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671272544800 is a wasteful number, since it uses less digits than its factorization.

671272544800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867811 (or 5867798 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 671272544800 in words is "six hundred seventy-one billion, two hundred seventy-two million, five hundred forty-four thousand, eight hundred".