68192519187 has 8 divisors (see below), whose sum is σ = 97917463504. Its totient is φ = 41964627168.

The previous prime is 68192519167. The next prime is 68192519233. The reversal of 68192519187 is 78191529186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68192519187 - 2¹⁴ = 68192502803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68192519167) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 874263028 + ... + 874263105.

It is an arithmetic number, because the mean of its divisors is an integer number (12239682938).

Almost surely, 2^68192519187 is an apocalyptic number.

68192519187 is a deficient number, since it is larger than the sum of its proper divisors (29724944317).

68192519187 is a wasteful number, since it uses less digits than its factorization.

68192519187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748526149.

The product of its digits is 2177280, while the sum is 57.

Subtracting 68192519187 from its reverse (78191529186), we obtain a palindrome (9999009999).

The spelling of 68192519187 in words is "sixty-eight billion, one hundred ninety-two million, five hundred nineteen thousand, one hundred eighty-seven".