19043834408 has 8 divisors (see below), whose sum is σ = 35707189530. Its totient is φ = 9521917200.

The previous prime is 19043834389. The next prime is 19043834413. The reversal of 19043834408 is 80443834091.

It can be written as a sum of positive squares in only one way, i.e., 11903246404 + 7140588004 = 109102^2 + 84502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190239643 + ... + 1190239658.

Almost surely, 2^19043834408 is an apocalyptic number.

It is an amenable number.

19043834408 is a deficient number, since it is larger than the sum of its proper divisors (16663355122).

19043834408 is a wasteful number, since it uses less digits than its factorization.

19043834408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380479307 (or 2380479303 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 19043834408 in words is "nineteen billion, forty-three million, eight hundred thirty-four thousand, four hundred eight".