194085573780448 has 144 divisors (see below), whose sum is σ = 445537116662400. Its totient is φ = 82983789450240.

The previous prime is 194085573780443. The next prime is 194085573780529. The reversal of 194085573780448 is 844087375580491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194085573780443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2995993818 + ... + 2996058598.

It is an arithmetic number, because the mean of its divisors is an integer number (3094007754600).

Almost surely, 2^{194085573780448} 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 194085573780448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222768558331200).

194085573780448 is an abundant number, since it is smaller than the sum of its proper divisors (251451542881952).

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

194085573780448 is a wasteful number, since it uses less digits than its factorization.

194085573780448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69273 (or 69258 counting only the distinct ones).

The product of its (nonzero) digits is 1083801600, while the sum is 73.

The spelling of 194085573780448 in words is "one hundred ninety-four trillion, eighty-five billion, five hundred seventy-three million, seven hundred eighty thousand, four hundred forty-eight".