194891540111 has 8 divisors (see below), whose sum is σ = 199050861504. Its totient is φ = 190732747680.

The previous prime is 194891540089. The next prime is 194891540167. The reversal of 194891540111 is 111045198491.

194891540111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194891540111 - 2⁶ = 194891540047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194891540171) by changing a digit.

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, 662981 + ... + 910673.

It is an arithmetic number, because the mean of its divisors is an integer number (24881357688).

Almost surely, 2^194891540111 is an apocalyptic number.

194891540111 is a deficient number, since it is larger than the sum of its proper divisors (4159321393).

194891540111 is a wasteful number, since it uses less digits than its factorization.

194891540111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264481.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 194891540111 in words is "one hundred ninety-four billion, eight hundred ninety-one million, five hundred forty thousand, one hundred eleven".