2001109092819 has 16 divisors (see below), whose sum is σ = 2812955767680. Its totient is φ = 1261886653440.

The previous prime is 2001109092817. The next prime is 2001109092833. The reversal of 2001109092819 is 9182909011002.

It is not a de Polignac number, because 2001109092819 - 2¹ = 2001109092817 is a prime.

It is a super-2 number, since 2×2001109092819² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001109092817) 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, 27348157 + ... + 27421230.

It is an arithmetic number, because the mean of its divisors is an integer number (175809735480).

Almost surely, 2^{2001109092819} is an apocalyptic number.

2001109092819 is a deficient number, since it is larger than the sum of its proper divisors (811846674861).

2001109092819 is a wasteful number, since it uses less digits than its factorization.

2001109092819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54770050.

The product of its (nonzero) digits is 23328, while the sum is 42.

It can be divided in two parts, 200110 and 9092819, that added together give a palindrome (9292929).

The spelling of 2001109092819 in words is "two trillion, one billion, one hundred nine million, ninety-two thousand, eight hundred nineteen".