68316213218 has 32 divisors (see below), whose sum is σ = 112960897920. Its totient is φ = 30728079360.

The previous prime is 68316213179. The next prime is 68316213233. The reversal of 68316213218 is 81231261386.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3182096 + ... + 3203492.

It is an arithmetic number, because the mean of its divisors is an integer number (3530028060).

Almost surely, 2^68316213218 is an apocalyptic number.

68316213218 is a deficient number, since it is larger than the sum of its proper divisors (44644684702).

68316213218 is a wasteful number, since it uses less digits than its factorization.

68316213218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22922.

The product of its digits is 82944, while the sum is 41.

The spelling of 68316213218 in words is "sixty-eight billion, three hundred sixteen million, two hundred thirteen thousand, two hundred eighteen".