19036520404 has 24 divisors (see below), whose sum is σ = 36545493600. Its totient is φ = 8604619680.

The previous prime is 19036520369. The next prime is 19036520471. The reversal of 19036520404 is 40402563091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19036520404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200639 + ... + 1216390.

It is an arithmetic number, because the mean of its divisors is an integer number (1522728900).

Almost surely, 2^19036520404 is an apocalyptic number.

It is an amenable number.

19036520404 is a deficient number, since it is larger than the sum of its proper divisors (17508973196).

19036520404 is a wasteful number, since it uses less digits than its factorization.

19036520404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417223 (or 2417221 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 19036520404 in words is "nineteen billion, thirty-six million, five hundred twenty thousand, four hundred four".