193008646913 has 2 divisors, whose sum is σ = 193008646914. Its totient is φ = 193008646912.

The previous prime is 193008646867. The next prime is 193008646921. The reversal of 193008646913 is 319646800391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184287328369 + 8721318544 = 429287^2 + 93388^2 .

It is a cyclic number.

It is not a de Polignac number, because 193008646913 - 2¹⁰ = 193008645889 is a prime.

It is not a weakly prime, because it can be changed into another prime (193008646993) by changing a digit.

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 as a sum of consecutive naturals, namely, 96504323456 + 96504323457.

It is an arithmetic number, because the mean of its divisors is an integer number (96504323457).

Almost surely, 2^193008646913 is an apocalyptic number.

It is an amenable number.

193008646913 is a deficient number, since it is larger than the sum of its proper divisors (1).

193008646913 is an equidigital number, since it uses as much as digits as its factorization.

193008646913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 193008646913 in words is "one hundred ninety-three billion, eight million, six hundred forty-six thousand, nine hundred thirteen".