210853912194 has 24 divisors (see below), whose sum is σ = 480894888240. Its totient is φ = 66585445848.

The previous prime is 210853912147. The next prime is 210853912201. The reversal of 210853912194 is 491219358012.

210853912194 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 539 + 1 + 21 + 94 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308265612 + ... + 308266295.

It is an arithmetic number, because the mean of its divisors is an integer number (20037287010).

Almost surely, 2^210853912194 is an apocalyptic number.

210853912194 is an abundant number, since it is smaller than the sum of its proper divisors (270040976046).

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

210853912194 is a wasteful number, since it uses less digits than its factorization.

210853912194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616531934 (or 616531931 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 210853912194 in words is "two hundred ten billion, eight hundred fifty-three million, nine hundred twelve thousand, one hundred ninety-four".