19800582044 has 12 divisors (see below), whose sum is σ = 34968918600. Its totient is φ = 9809462448.

The previous prime is 19800582037. The next prime is 19800582047. The reversal of 19800582044 is 44028500891.

It is a junction number, because it is equal to n+sod(n) for n = 19800581992 and 19800582010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19800582047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22706654 + ... + 22707525.

It is an arithmetic number, because the mean of its divisors is an integer number (2914076550).

Almost surely, 2^19800582044 is an apocalyptic number.

It is an amenable number.

19800582044 is a deficient number, since it is larger than the sum of its proper divisors (15168336556).

19800582044 is a wasteful number, since it uses less digits than its factorization.

19800582044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45414292 (or 45414290 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 19800582044 in words is "nineteen billion, eight hundred million, five hundred eighty-two thousand, forty-four".