68517287219 has 8 divisors (see below), whose sum is σ = 69384069888. Its totient is φ = 67655939400.

The previous prime is 68517287197. The next prime is 68517287231. The reversal of 68517287219 is 91278271586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68517287219 is a prime.

It is a super-2 number, since 2×68517287219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68517287299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333337 + ... + 1383770.

It is an arithmetic number, because the mean of its divisors is an integer number (8673008736).

Almost surely, 2^68517287219 is an apocalyptic number.

68517287219 is a deficient number, since it is larger than the sum of its proper divisors (866782669).

68517287219 is a wasteful number, since it uses less digits than its factorization.

68517287219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717425.

The product of its digits is 3386880, while the sum is 56.

The spelling of 68517287219 in words is "sixty-eight billion, five hundred seventeen million, two hundred eighty-seven thousand, two hundred nineteen".