194528677861 has 8 divisors (see below), whose sum is σ = 223289313920. Its totient is φ = 166010748048.

The previous prime is 194528677853. The next prime is 194528677891. The reversal of 194528677861 is 168776825491.

194528677861 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 194528677861 - 2³ = 194528677853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194528677793 and 194528677802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194528677831) 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, 60674841 + ... + 60678046.

It is an arithmetic number, because the mean of its divisors is an integer number (27911164240).

Almost surely, 2^194528677861 is an apocalyptic number.

It is an amenable number.

194528677861 is a deficient number, since it is larger than the sum of its proper divisors (28760636059).

194528677861 is a wasteful number, since it uses less digits than its factorization.

194528677861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121353123.

The product of its digits is 40642560, while the sum is 64.

The spelling of 194528677861 in words is "one hundred ninety-four billion, five hundred twenty-eight million, six hundred seventy-seven thousand, eight hundred sixty-one".