194352685861 has 8 divisors (see below), whose sum is σ = 206018265024. Its totient is φ = 182713003200.

The previous prime is 194352685853. The next prime is 194352685897. The reversal of 194352685861 is 168586253491.

It is a happy number.

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 194352685861 - 2³ = 194352685853 is a prime.

It is a super-2 number, since 2×194352685861² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194352685796 and 194352685805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194352685801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6458665 + ... + 6488686.

It is an arithmetic number, because the mean of its divisors is an integer number (25752283128).

Almost surely, 2^194352685861 is an apocalyptic number.

It is an amenable number.

194352685861 is a deficient number, since it is larger than the sum of its proper divisors (11665579163).

194352685861 is a wasteful number, since it uses less digits than its factorization.

194352685861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12948251.

The product of its digits is 12441600, while the sum is 58.

The spelling of 194352685861 in words is "one hundred ninety-four billion, three hundred fifty-two million, six hundred eighty-five thousand, eight hundred sixty-one".