819069090219 has 12 divisors (see below), whose sum is σ = 1183187267496. Its totient is φ = 546005689152.

The previous prime is 819069090209. The next prime is 819069090233. The reversal of 819069090219 is 912090960918.

It is not a de Polignac number, because 819069090219 - 2⁵ = 819069090187 is a prime.

It is a super-2 number, since 2×819069090219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (819069090209) 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 11 ways as a sum of consecutive naturals, for example, 3235497 + ... + 3479450.

It is an arithmetic number, because the mean of its divisors is an integer number (98598938958).

Almost surely, 2^819069090219 is an apocalyptic number.

819069090219 is a deficient number, since it is larger than the sum of its proper divisors (364118177277).

819069090219 is a wasteful number, since it uses less digits than its factorization.

819069090219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6728506 (or 6728503 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 54.

The spelling of 819069090219 in words is "eight hundred nineteen billion, sixty-nine million, ninety thousand, two hundred nineteen".