19049568472 has 24 divisors (see below), whose sum is σ = 38967674940. Its totient is φ = 8658306240.

The previous prime is 19049568463. The next prime is 19049568509. The reversal of 19049568472 is 27486594091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1287388 + ... + 1302100.

Almost surely, 2^19049568472 is an apocalyptic number.

It is an amenable number.

19049568472 is an abundant number, since it is smaller than the sum of its proper divisors (19918106468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19049568472 is an frugal number, since it uses more digits than its factorization.

19049568472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29443 (or 14726 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 19049568472 in words is "nineteen billion, forty-nine million, five hundred sixty-eight thousand, four hundred seventy-two".