212706816908 has 12 divisors (see below), whose sum is σ = 372668264640. Its totient is φ = 106230169872.

The previous prime is 212706816877. The next prime is 212706816947. The reversal of 212706816908 is 809618607212.

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, 30805763 + ... + 30812666.

It is an arithmetic number, because the mean of its divisors is an integer number (31055688720).

Almost surely, 2^212706816908 is an apocalyptic number.

It is an amenable number.

212706816908 is a deficient number, since it is larger than the sum of its proper divisors (159961447732).

212706816908 is a wasteful number, since it uses less digits than its factorization.

212706816908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61619296 (or 61619294 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 212706816908 in words is "two hundred twelve billion, seven hundred six million, eight hundred sixteen thousand, nine hundred eight".