13044017919 has 4 divisors (see below), whose sum is σ = 17392023896. Its totient is φ = 8696011944.

The previous prime is 13044017881. The next prime is 13044017957. The reversal of 13044017919 is 91971044031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91971044031 = 3 ⋅30657014677.

It is an interprime number because it is at equal distance from previous prime (13044017881) and next prime (13044017957).

It is not a de Polignac number, because 13044017919 - 2³² = 8749050623 is a prime.

It is a super-2 number, since 2×13044017919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044017989) 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 3 ways as a sum of consecutive naturals, for example, 2174002984 + ... + 2174002989.

It is an arithmetic number, because the mean of its divisors is an integer number (4348005974).

Almost surely, 2^13044017919 is an apocalyptic number.

13044017919 is a deficient number, since it is larger than the sum of its proper divisors (4348005977).

13044017919 is an equidigital number, since it uses as much as digits as its factorization.

13044017919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348005976.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 13044017919 in words is "thirteen billion, forty-four million, seventeen thousand, nine hundred nineteen".