194071622399 has 2 divisors, whose sum is σ = 194071622400. Its totient is φ = 194071622398.

The previous prime is 194071622369. The next prime is 194071622417. The reversal of 194071622399 is 993226170491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 194071622399 - 2²⁴ = 194054845183 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194071622399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194071622369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97035811199 + 97035811200.

It is an arithmetic number, because the mean of its divisors is an integer number (97035811200).

Almost surely, 2^194071622399 is an apocalyptic number.

194071622399 is a deficient number, since it is larger than the sum of its proper divisors (1).

194071622399 is an equidigital number, since it uses as much as digits as its factorization.

194071622399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 194071622399 in words is "one hundred ninety-four billion, seventy-one million, six hundred twenty-two thousand, three hundred ninety-nine".