19669384141 has 4 divisors (see below), whose sum is σ = 21457509984. Its totient is φ = 17881258300.

The previous prime is 19669384129. The next prime is 19669384169. The reversal of 19669384141 is 14148396691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19669384141 - 2¹¹ = 19669382093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19669384121) 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 in 3 ways as a sum of consecutive naturals, for example, 894062905 + ... + 894062926.

It is an arithmetic number, because the mean of its divisors is an integer number (5364377496).

Almost surely, 2^19669384141 is an apocalyptic number.

19669384141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19669384141 is a deficient number, since it is larger than the sum of its proper divisors (1788125843).

19669384141 is a wasteful number, since it uses less digits than its factorization.

19669384141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788125842.

The product of its digits is 1119744, while the sum is 52.

The spelling of 19669384141 in words is "nineteen billion, six hundred sixty-nine million, three hundred eighty-four thousand, one hundred forty-one".