671770012 has 12 divisors (see below), whose sum is σ = 1178803360. Its totient is φ = 334969056.

The previous prime is 671770009. The next prime is 671770019. The reversal of 671770012 is 210077176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671770019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227337 + ... + 230272.

Almost surely, 2^671770012 is an apocalyptic number.

It is an amenable number.

671770012 is a deficient number, since it is larger than the sum of its proper divisors (507033348).

671770012 is a wasteful number, since it uses less digits than its factorization.

671770012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457980 (or 457978 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 671770012 is about 25918.5264241623. The cubic root of 671770012 is about 875.8038922854.

It can be divided in two parts, 6717 and 70012, that added together give a square (76729 = 277²).

The spelling of 671770012 in words is "six hundred seventy-one million, seven hundred seventy thousand, twelve".