19423718796 has 12 divisors (see below), whose sum is σ = 45322010552. Its totient is φ = 6474572928.

The previous prime is 19423718789. The next prime is 19423718827. The reversal of 19423718796 is 69781732491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 809321605 + ... + 809321628.

Almost surely, 2^19423718796 is an apocalyptic number.

It is an amenable number.

19423718796 is an abundant number, since it is smaller than the sum of its proper divisors (25898291756).

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

19423718796 is a wasteful number, since it uses less digits than its factorization.

19423718796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618643240 (or 1618643238 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The spelling of 19423718796 in words is "nineteen billion, four hundred twenty-three million, seven hundred eighteen thousand, seven hundred ninety-six".