18758719896 has 64 divisors (see below), whose sum is σ = 53805012480. Its totient is φ = 5338767360.

The previous prime is 18758719877. The next prime is 18758719909. The reversal of 18758719896 is 69891785781.

It is a self number, because there is not a number n which added to its sum of digits gives 18758719896.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174060 + ... + 260411.

It is an arithmetic number, because the mean of its divisors is an integer number (840703320).

Almost surely, 2^18758719896 is an apocalyptic number.

It is an amenable number.

18758719896 is an abundant number, since it is smaller than the sum of its proper divisors (35046292584).

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

18758719896 is a wasteful number, since it uses less digits than its factorization.

18758719896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434744 (or 434740 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 69.

The spelling of 18758719896 in words is "eighteen billion, seven hundred fifty-eight million, seven hundred nineteen thousand, eight hundred ninety-six".