194189625895 has 4 divisors (see below), whose sum is σ = 233027551080. Its totient is φ = 155351700712.

The previous prime is 194189625881. The next prime is 194189625961. The reversal of 194189625895 is 598526981491.

194189625895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194189625895 - 2⁷ = 194189625767 is a prime.

It is a super-2 number, since 2×194189625895² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 194189625895.

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 3 ways as a sum of consecutive naturals, for example, 19418962585 + ... + 19418962594.

It is an arithmetic number, because the mean of its divisors is an integer number (58256887770).

Almost surely, 2^194189625895 is an apocalyptic number.

194189625895 is a deficient number, since it is larger than the sum of its proper divisors (38837925185).

194189625895 is an equidigital number, since it uses as much as digits as its factorization.

194189625895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38837925184.

The product of its digits is 55987200, while the sum is 67.

The spelling of 194189625895 in words is "one hundred ninety-four billion, one hundred eighty-nine million, six hundred twenty-five thousand, eight hundred ninety-five".