211944485192 has 32 divisors (see below), whose sum is σ = 433555977600. Its totient is φ = 96331032000.

The previous prime is 211944485189. The next prime is 211944485209. The reversal of 211944485192 is 291584449112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211944485192.

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, 1160942 + ... + 1331042.

It is an arithmetic number, because the mean of its divisors is an integer number (13548624300).

Almost surely, 2^211944485192 is an apocalyptic number.

211944485192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211944485192 is an abundant number, since it is smaller than the sum of its proper divisors (221611492408).

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

211944485192 is a wasteful number, since it uses less digits than its factorization.

211944485192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184277 (or 184273 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The spelling of 211944485192 in words is "two hundred eleven billion, nine hundred forty-four million, four hundred eighty-five thousand, one hundred ninety-two".