19043641144 has 48 divisors (see below), whose sum is σ = 39689168400. Its totient is φ = 8558901120.

The previous prime is 19043641121. The next prime is 19043641151. The reversal of 19043641144 is 44114634091.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24372 + ... + 196675.

It is an arithmetic number, because the mean of its divisors is an integer number (826857675).

Almost surely, 2^19043641144 is an apocalyptic number.

It is an amenable number.

19043641144 is an abundant number, since it is smaller than the sum of its proper divisors (20645527256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19043641144 is a wasteful number, since it uses less digits than its factorization.

19043641144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221164 (or 221149 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 19043641144 in words is "nineteen billion, forty-three million, six hundred forty-one thousand, one hundred forty-four".