671218912 has 48 divisors (see below), whose sum is σ = 1626422112. Its totient is φ = 265536000.

The previous prime is 671218903. The next prime is 671218927. The reversal of 671218912 is 219812176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112339 + ... + 118162.

It is an arithmetic number, because the mean of its divisors is an integer number (33883794).

Almost surely, 2^671218912 is an apocalyptic number.

It is an amenable number.

671218912 is an abundant number, since it is smaller than the sum of its proper divisors (955203200).

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

671218912 is a wasteful number, since it uses less digits than its factorization.

671218912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230531 (or 230523 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 671218912 is about 25907.8928514073. The cubic root of 671218912 is about 875.5643323359.

The spelling of 671218912 in words is "six hundred seventy-one million, two hundred eighteen thousand, nine hundred twelve".