211979444708 has 12 divisors (see below), whose sum is σ = 387092899200. Its totient is φ = 101381473512.

The previous prime is 211979444671. The next prime is 211979444737. The reversal of 211979444708 is 807444979112.

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, 1152062108 + ... + 1152062291.

It is an arithmetic number, because the mean of its divisors is an integer number (32257741600).

Almost surely, 2^211979444708 is an apocalyptic number.

It is an amenable number.

211979444708 is a deficient number, since it is larger than the sum of its proper divisors (175113454492).

211979444708 is a wasteful number, since it uses less digits than its factorization.

211979444708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304124426 (or 2304124424 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 211979444708 in words is "two hundred eleven billion, nine hundred seventy-nine million, four hundred forty-four thousand, seven hundred eight".