19117103188 has 24 divisors (see below), whose sum is σ = 34544195840. Its totient is φ = 9247512960.

The previous prime is 19117103183. The next prime is 19117103197. The reversal of 19117103188 is 88130171191.

It is a self number, because there is not a number n which added to its sum of digits gives 19117103188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19117103183) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 443020 + ... + 484252.

Almost surely, 2^19117103188 is an apocalyptic number.

It is an amenable number.

19117103188 is a deficient number, since it is larger than the sum of its proper divisors (15427092652).

19117103188 is a wasteful number, since it uses less digits than its factorization.

19117103188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45007 (or 45005 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 40.

The spelling of 19117103188 in words is "nineteen billion, one hundred seventeen million, one hundred three thousand, one hundred eighty-eight".