194574640368 has 40 divisors (see below), whose sum is σ = 516236325328. Its totient is φ = 63105288192.

The previous prime is 194574640229. The next prime is 194574640387. The reversal of 194574640368 is 863046475491.

194574640368 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54777121 + ... + 54780672.

Almost surely, 2^194574640368 is an apocalyptic number.

It is an amenable number.

194574640368 is an abundant number, since it is smaller than the sum of its proper divisors (321661684960).

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

194574640368 is a wasteful number, since it uses less digits than its factorization.

194574640368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109557841 (or 109557835 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 194574640368 in words is "one hundred ninety-four billion, five hundred seventy-four million, six hundred forty thousand, three hundred sixty-eight".