19368840404 has 12 divisors (see below), whose sum is σ = 33902092224. Its totient is φ = 9682528344.

The previous prime is 19368840373. The next prime is 19368840419. The reversal of 19368840404 is 40404886391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449804 + ... + 490979.

It is an arithmetic number, because the mean of its divisors is an integer number (2825174352).

Almost surely, 2^19368840404 is an apocalyptic number.

It is an amenable number.

19368840404 is a deficient number, since it is larger than the sum of its proper divisors (14533251820).

19368840404 is a wasteful number, since it uses less digits than its factorization.

19368840404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945934 (or 945932 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 19368840404 in words is "nineteen billion, three hundred sixty-eight million, eight hundred forty thousand, four hundred four".