11143564791919 has 24 divisors (see below), whose sum is σ = 13705292568960. Its totient is φ = 9009046546416.

The previous prime is 11143564791889. The next prime is 11143564791967. The reversal of 11143564791919 is 91919746534111.

It is not a de Polignac number, because 11143564791919 - 2¹¹ = 11143564789871 is a prime.

It is a super-2 number, since 2×11143564791919² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143564791019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26153107 + ... + 26575780.

It is an arithmetic number, because the mean of its divisors is an integer number (571053857040).

Almost surely, 2^{11143564791919} is an apocalyptic number.

11143564791919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11143564791919 is a deficient number, since it is larger than the sum of its proper divisors (2561727777041).

11143564791919 is a wasteful number, since it uses less digits than its factorization.

11143564791919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52729147 (or 52729140 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 61.

The spelling of 11143564791919 in words is "eleven trillion, one hundred forty-three billion, five hundred sixty-four million, seven hundred ninety-one thousand, nine hundred nineteen".