19344489448 has 16 divisors (see below), whose sum is σ = 38404501380. Its totient is φ = 9103289088.

The previous prime is 19344489433. The next prime is 19344489473. The reversal of 19344489448 is 84498444391.

It can be written as a sum of positive squares in 2 ways, for example, as 17891202564 + 1453286884 = 133758^2 + 38122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19344489392 and 19344489401.

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, 71119311 + ... + 71119582.

Almost surely, 2^19344489448 is an apocalyptic number.

It is an amenable number.

19344489448 is a deficient number, since it is larger than the sum of its proper divisors (19060011932).

19344489448 is a wasteful number, since it uses less digits than its factorization.

19344489448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142238916 (or 142238912 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 58.

The spelling of 19344489448 in words is "nineteen billion, three hundred forty-four million, four hundred eighty-nine thousand, four hundred forty-eight".