194555977226 has 16 divisors (see below), whose sum is σ = 314305924968. Its totient is φ = 89788440000.

The previous prime is 194555977211. The next prime is 194555977241. The reversal of 194555977226 is 622779555491.

194555977226 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 441085²+1.

It is an interprime number because it is at equal distance from previous prime (194555977211) and next prime (194555977241).

It can be written as a sum of positive squares in 4 ways, for example, as 158551294225 + 36004683001 = 398185^2 + 189749^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92276 + ... + 630576.

Almost surely, 2^194555977226 is an apocalyptic number.

194555977226 is a deficient number, since it is larger than the sum of its proper divisors (119749947742).

194555977226 is a wasteful number, since it uses less digits than its factorization.

194555977226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552217.

The product of its digits is 47628000, while the sum is 62.

The spelling of 194555977226 in words is "one hundred ninety-four billion, five hundred fifty-five million, nine hundred seventy-seven thousand, two hundred twenty-six".