19090813809089 has 16 divisors (see below), whose sum is σ = 21504273824256. Its totient is φ = 16790660812800.

The previous prime is 19090813809061. The next prime is 19090813809103. The reversal of 19090813809089 is 98090831809091.

It is a cyclic number.

It is not a de Polignac number, because 19090813809089 - 2¹⁶ = 19090813743553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19090813809019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6759872 + ... + 9158465.

It is an arithmetic number, because the mean of its divisors is an integer number (1344017114016).

Almost surely, 2^{19090813809089} is an apocalyptic number.

It is an amenable number.

19090813809089 is a deficient number, since it is larger than the sum of its proper divisors (2413460015167).

19090813809089 is a wasteful number, since it uses less digits than its factorization.

19090813809089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15921896.

The product of its (nonzero) digits is 10077696, while the sum is 65.

The spelling of 19090813809089 in words is "nineteen trillion, ninety billion, eight hundred thirteen million, eight hundred nine thousand, eighty-nine".