19319738044 has 12 divisors (see below), whose sum is σ = 33811031800. Its totient is φ = 9659443248.

The previous prime is 19319738041. The next prime is 19319738063. The reversal of 19319738044 is 44083791391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19319738041) 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, 9742 + ... + 196810.

Almost surely, 2^19319738044 is an apocalyptic number.

It is an amenable number.

19319738044 is a deficient number, since it is larger than the sum of its proper divisors (14491293756).

19319738044 is a wasteful number, since it uses less digits than its factorization.

19319738044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212892 (or 212890 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 19319738044 in words is "nineteen billion, three hundred nineteen million, seven hundred thirty-eight thousand, forty-four".