19669809411 has 24 divisors (see below), whose sum is σ = 33518244864. Its totient is φ = 10877312880.

The previous prime is 19669809389. The next prime is 19669809431. The reversal of 19669809411 is 11490896691.

19669809411 is a `hidden beast` number, since 1 + 96 + 69 + 80 + 9 + 411 = 666.

It is not a de Polignac number, because 19669809411 - 2¹³ = 19669801219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19669809431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5033841 + ... + 5037746.

It is an arithmetic number, because the mean of its divisors is an integer number (1396593536).

Almost surely, 2^19669809411 is an apocalyptic number.

19669809411 is a deficient number, since it is larger than the sum of its proper divisors (13848435453).

19669809411 is a wasteful number, since it uses less digits than its factorization.

19669809411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10071631 (or 10071628 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The spelling of 19669809411 in words is "nineteen billion, six hundred sixty-nine million, eight hundred nine thousand, four hundred eleven".