194775668 has 12 divisors (see below), whose sum is σ = 341544000. Its totient is φ = 97191672.

The previous prime is 194775653. The next prime is 194775677. The reversal of 194775668 is 866577491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46796 + ... + 50787.

It is an arithmetic number, because the mean of its divisors is an integer number (28462000).

Almost surely, 2^194775668 is an apocalyptic number.

It is an amenable number.

194775668 is a deficient number, since it is larger than the sum of its proper divisors (146768332).

194775668 is a wasteful number, since it uses less digits than its factorization.

194775668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98086 (or 98084 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 53.

The square root of 194775668 is about 13956.2053581910. The cubic root of 194775668 is about 579.6665423697. Note that the first 3 decimals are identical.

The spelling of 194775668 in words is "one hundred ninety-four million, seven hundred seventy-five thousand, six hundred sixty-eight".