68517894354 has 64 divisors (see below), whose sum is σ = 177536271360. Its totient is φ = 17119563840.

The previous prime is 68517894281. The next prime is 68517894463. The reversal of 68517894354 is 45349871586.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3292012 + ... + 3312759.

It is an arithmetic number, because the mean of its divisors is an integer number (2774004240).

Almost surely, 2^68517894354 is an apocalyptic number.

68517894354 is an abundant number, since it is smaller than the sum of its proper divisors (109018377006).

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

68517894354 is a wasteful number, since it uses less digits than its factorization.

68517894354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604815.

The product of its digits is 29030400, while the sum is 60.

The spelling of 68517894354 in words is "sixty-eight billion, five hundred seventeen million, eight hundred ninety-four thousand, three hundred fifty-four".