19690800011 has 2 divisors, whose sum is σ = 19690800012. Its totient is φ = 19690800010.

The previous prime is 19690799917. The next prime is 19690800013. The reversal of 19690800011 is 11000809691.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19690800011 is a prime.

Together with 19690800013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19690800013) 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, 9845400005 + 9845400006.

It is an arithmetic number, because the mean of its divisors is an integer number (9845400006).

Almost surely, 2^19690800011 is an apocalyptic number.

19690800011 is a deficient number, since it is larger than the sum of its proper divisors (1).

19690800011 is an equidigital number, since it uses as much as digits as its factorization.

19690800011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 19690800011 in words is "nineteen billion, six hundred ninety million, eight hundred thousand, eleven".