19117196424768 has 168 divisors, whose sum is σ = 54905003220000. Its totient is φ = 5867828269056.

The previous prime is 19117196424679. The next prime is 19117196424779. The reversal of 19117196424768 is 86742469171191.

It is a junction number, because it is equal to n+sod(n) for n = 19117196424699 and 19117196424708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12550983 + ... + 13991481.

Almost surely, 2^{19117196424768} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19117196424768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27452501610000).

19117196424768 is an abundant number, since it is smaller than the sum of its proper divisors (35787806795232).

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

19117196424768 is a wasteful number, since it uses less digits than its factorization.

19117196424768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440949 (or 1440926 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 66.

The spelling of 19117196424768 in words is "nineteen trillion, one hundred seventeen billion, one hundred ninety-six million, four hundred twenty-four thousand, seven hundred sixty-eight".