19004820911 has 2 divisors, whose sum is σ = 19004820912. Its totient is φ = 19004820910.

The previous prime is 19004820853. The next prime is 19004820929. The reversal of 19004820911 is 11902840091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19004820911 - 2¹⁸ = 19004558767 is a prime.

It is a super-2 number, since 2×19004820911² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19004820011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9502410455 + 9502410456.

It is an arithmetic number, because the mean of its divisors is an integer number (9502410456).

Almost surely, 2^19004820911 is an apocalyptic number.

19004820911 is a deficient number, since it is larger than the sum of its proper divisors (1).

19004820911 is an equidigital number, since it uses as much as digits as its factorization.

19004820911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 19004820911 in words is "nineteen billion, four million, eight hundred twenty thousand, nine hundred eleven".