68214224688 has 320 divisors, whose sum is σ = 198193029120. Its totient is φ = 20118067200.

The previous prime is 68214224677. The next prime is 68214224699. The reversal of 68214224688 is 88642241286.

It is an interprime number because it is at equal distance from previous prime (68214224677) and next prime (68214224699).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 68214224688.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 242755108 + ... + 242755388.

It is an arithmetic number, because the mean of its divisors is an integer number (619353216).

Almost surely, 2^68214224688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68214224688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99096514560).

68214224688 is an abundant number, since it is smaller than the sum of its proper divisors (129978804432).

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

68214224688 is a wasteful number, since it uses less digits than its factorization.

68214224688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 562 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The spelling of 68214224688 in words is "sixty-eight billion, two hundred fourteen million, two hundred twenty-four thousand, six hundred eighty-eight".