13444444444 has 12 divisors (see below), whose sum is σ = 23533811784. Its totient is φ = 6720498224.

The previous prime is 13444444421. The next prime is 13444444463. The reversal of 13444444444 is 44444444431.

13444444444 is a modest number, since divided by 444444 gives 13444 as remainder.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 13444444397 and 13444444406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413374 + ... + 444709.

It is an arithmetic number, because the mean of its divisors is an integer number (1961150982).

Almost surely, 2^13444444444 is an apocalyptic number.

It is an amenable number.

13444444444 is a deficient number, since it is larger than the sum of its proper divisors (10089367340).

13444444444 is a wasteful number, since it uses less digits than its factorization.

13444444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862004 (or 862002 counting only the distinct ones).

The product of its digits is 786432, while the sum is 40.

Adding to 13444444444 its reverse (44444444431), we get a palindrome (57888888875).

The spelling of 13444444444 in words is "thirteen billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-four".