67727928412812 has 12 divisors (see below), whose sum is σ = 158031832963256. Its totient is φ = 22575976137600.

The previous prime is 67727928412799. The next prime is 67727928412843. The reversal of 67727928412812 is 21821482972776.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2821997017189 + ... + 2821997017212.

Almost surely, 2^{67727928412812} is an apocalyptic number.

It is an amenable number.

67727928412812 is an abundant number, since it is smaller than the sum of its proper divisors (90303904550444).

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

67727928412812 is a wasteful number, since it uses less digits than its factorization.

67727928412812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643994034408 (or 5643994034406 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 66.

The spelling of 67727928412812 in words is "sixty-seven trillion, seven hundred twenty-seven billion, nine hundred twenty-eight million, four hundred twelve thousand, eight hundred twelve".