19044489441 has 32 divisors (see below), whose sum is σ = 26332766208. Its totient is φ = 12235190400.

The previous prime is 19044489419. The next prime is 19044489461. The reversal of 19044489441 is 14498444091.

It is not a de Polignac number, because 19044489441 - 2¹⁰ = 19044488417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19044489461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8099416 + ... + 8101766.

It is an arithmetic number, because the mean of its divisors is an integer number (822898944).

Almost surely, 2^19044489441 is an apocalyptic number.

It is an amenable number.

19044489441 is a deficient number, since it is larger than the sum of its proper divisors (7288276767).

19044489441 is a wasteful number, since it uses less digits than its factorization.

19044489441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 19044489441 in words is "nineteen billion, forty-four million, four hundred eighty-nine thousand, four hundred forty-one".