211942894092 has 24 divisors (see below), whose sum is σ = 495029468976. Its totient is φ = 70576767168.

The previous prime is 211942894073. The next prime is 211942894147. The reversal of 211942894092 is 290498249112.

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, 8845563 + ... + 8869490.

It is an arithmetic number, because the mean of its divisors is an integer number (20626227874).

Almost surely, 2^211942894092 is an apocalyptic number.

It is an amenable number.

211942894092 is an abundant number, since it is smaller than the sum of its proper divisors (283086574884).

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

211942894092 is a wasteful number, since it uses less digits than its factorization.

211942894092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17716057 (or 17716055 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 211942894092 in words is "two hundred eleven billion, nine hundred forty-two million, eight hundred ninety-four thousand, ninety-two".