194704321920 has 128 divisors (see below), whose sum is σ = 626420874240. Its totient is φ = 51435853824.

The previous prime is 194704321907. The next prime is 194704321993. The reversal of 194704321920 is 29123407491.

It is a happy number.

194704321920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268432 + ... + 679311.

It is an arithmetic number, because the mean of its divisors is an integer number (4893913080).

Almost surely, 2^194704321920 is an apocalyptic number.

194704321920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194704321920 is an abundant number, since it is smaller than the sum of its proper divisors (431716552320).

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

194704321920 is a wasteful number, since it uses less digits than its factorization.

194704321920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947872 (or 947860 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 194704321920 in words is "one hundred ninety-four billion, seven hundred four million, three hundred twenty-one thousand, nine hundred twenty".