194742749560 has 64 divisors (see below), whose sum is σ = 449147825280. Its totient is φ = 75948149760.

The previous prime is 194742749557. The next prime is 194742749573. The reversal of 194742749560 is 65947247491.

194742749560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194742749495 and 194742749504.

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 15 ways as a sum of consecutive naturals, for example, 2558614 + ... + 2633626.

It is an arithmetic number, because the mean of its divisors is an integer number (7017934770).

Almost surely, 2^194742749560 is an apocalyptic number.

194742749560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194742749560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224573912640).

194742749560 is an abundant number, since it is smaller than the sum of its proper divisors (254405075720).

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

194742749560 is a wasteful number, since it uses less digits than its factorization.

194742749560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76648 (or 76644 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 194742749560 in words is "one hundred ninety-four billion, seven hundred forty-two million, seven hundred forty-nine thousand, five hundred sixty".