10844840081 has 4 divisors (see below), whose sum is σ = 11194673664. Its totient is φ = 10495006500.

The previous prime is 10844840077. The next prime is 10844840099. The reversal of 10844840081 is 18004844801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18004844801 = 70919 ⋅253879.

It is a cyclic number.

It is not a de Polignac number, because 10844840081 - 2² = 10844840077 is a prime.

It is a super-2 number, since 2×10844840081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10844840011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174916745 + ... + 174916806.

It is an arithmetic number, because the mean of its divisors is an integer number (2798668416).

Almost surely, 2^10844840081 is an apocalyptic number.

It is an amenable number.

10844840081 is a deficient number, since it is larger than the sum of its proper divisors (349833583).

10844840081 is an equidigital number, since it uses as much as digits as its factorization.

10844840081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349833582.

The product of its (nonzero) digits is 32768, while the sum is 38.

The spelling of 10844840081 in words is "ten billion, eight hundred forty-four million, eight hundred forty thousand, eighty-one".