13944354419 has 4 divisors (see below), whose sum is σ = 13948509120. Its totient is φ = 13940199720.

The previous prime is 13944354409. The next prime is 13944354421. The reversal of 13944354419 is 91445344931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13944354419 - 2²⁰ = 13943305843 is a prime.

It is a super-2 number, since 2×13944354419² (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 (13944354409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072312 + ... + 2079029.

It is an arithmetic number, because the mean of its divisors is an integer number (3487127280).

Almost surely, 2^13944354419 is an apocalyptic number.

13944354419 is a deficient number, since it is larger than the sum of its proper divisors (4154701).

13944354419 is an equidigital number, since it uses as much as digits as its factorization.

13944354419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154700.

The product of its digits is 933120, while the sum is 47.

The spelling of 13944354419 in words is "thirteen billion, nine hundred forty-four million, three hundred fifty-four thousand, four hundred nineteen".