19190686889 has 8 divisors (see below), whose sum is σ = 21380727168. Its totient is φ = 17074885360.

The previous prime is 19190686817. The next prime is 19190686891. The reversal of 19190686889 is 98868609191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19190686889 - 2¹² = 19190682793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19190686189) 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 7 ways as a sum of consecutive naturals, for example, 18559142 + ... + 18560175.

It is an arithmetic number, because the mean of its divisors is an integer number (2672590896).

Almost surely, 2^19190686889 is an apocalyptic number.

It is an amenable number.

19190686889 is a deficient number, since it is larger than the sum of its proper divisors (2190040279).

19190686889 is a wasteful number, since it uses less digits than its factorization.

19190686889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37119375.

The product of its (nonzero) digits is 13436928, while the sum is 65.

The spelling of 19190686889 in words is "nineteen billion, one hundred ninety million, six hundred eighty-six thousand, eight hundred eighty-nine".