194312821104 has 40 divisors (see below), whose sum is σ = 557749765520. Its totient is φ = 64770940224.

The previous prime is 194312821067. The next prime is 194312821123. The reversal of 194312821104 is 401128213491.

194312821104 is a `hidden beast` number, since 1 + 9 + 431 + 2 + 8 + 211 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 224898667 + ... + 224899530.

It is an arithmetic number, because the mean of its divisors is an integer number (13943744138).

Almost surely, 2^194312821104 is an apocalyptic number.

It is an amenable number.

194312821104 is an abundant number, since it is smaller than the sum of its proper divisors (363436944416).

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

194312821104 is a wasteful number, since it uses less digits than its factorization.

194312821104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449798214 (or 449798202 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 194312821104 in words is "one hundred ninety-four billion, three hundred twelve million, eight hundred twenty-one thousand, one hundred four".