199035629909 has 2 divisors, whose sum is σ = 199035629910. Its totient is φ = 199035629908.

The previous prime is 199035629899. The next prime is 199035629981. The reversal of 199035629909 is 909926530991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120932149009 + 78103480900 = 347753^2 + 279470^2 .

It is an emirp because it is prime and its reverse (909926530991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199035629909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199035629999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99517814954 + 99517814955.

It is an arithmetic number, because the mean of its divisors is an integer number (99517814955).

Almost surely, 2^199035629909 is an apocalyptic number.

It is an amenable number.

199035629909 is a deficient number, since it is larger than the sum of its proper divisors (1).

199035629909 is an equidigital number, since it uses as much as digits as its factorization.

199035629909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10628820, while the sum is 62.

The spelling of 199035629909 in words is "one hundred ninety-nine billion, thirty-five million, six hundred twenty-nine thousand, nine hundred nine".