194743629144 has 192 divisors, whose sum is σ = 546782464800. Its totient is φ = 62576640000.

The previous prime is 194743629139. The next prime is 194743629203. The reversal of 194743629144 is 441926347491.

It is a happy number.

194743629144 is a `hidden beast` number, since 1 + 9 + 4 + 7 + 4 + 3 + 629 + 1 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121637944 + ... + 121639544.

Almost surely, 2^194743629144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194743629144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273391232400).

194743629144 is an abundant number, since it is smaller than the sum of its proper divisors (352038835656).

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

194743629144 is a wasteful number, since it uses less digits than its factorization.

194743629144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146 (or 2139 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 194743629144 in words is "one hundred ninety-four billion, seven hundred forty-three million, six hundred twenty-nine thousand, one hundred forty-four".