194885918844 has 24 divisors (see below), whose sum is σ = 455006316240. Its totient is φ = 64923043584.

The previous prime is 194885918831. The next prime is 194885918873. The reversal of 194885918844 is 448819588491.

It is a congruent number.

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, 4845309 + ... + 4885364.

It is an arithmetic number, because the mean of its divisors is an integer number (18958596510).

Almost surely, 2^194885918844 is an apocalyptic number.

It is an amenable number.

194885918844 is an abundant number, since it is smaller than the sum of its proper divisors (260120397396).

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

194885918844 is a wasteful number, since it uses less digits than its factorization.

194885918844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9732349 (or 9732347 counting only the distinct ones).

The product of its digits is 106168320, while the sum is 69.

The spelling of 194885918844 in words is "one hundred ninety-four billion, eight hundred eighty-five million, nine hundred eighteen thousand, eight hundred forty-four".