68140074680 has 256 divisors, whose sum is σ = 171350208000. Its totient is φ = 24289486848.

The previous prime is 68140074677. The next prime is 68140074701. The reversal of 68140074680 is 8647004186.

It is a congruent number.

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, 111158054 + ... + 111158666.

It is an arithmetic number, because the mean of its divisors is an integer number (669336750).

Almost surely, 2^68140074680 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 68140074680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85675104000).

68140074680 is an abundant number, since it is smaller than the sum of its proper divisors (103210133320).

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

68140074680 is a wasteful number, since it uses less digits than its factorization.

68140074680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 68140074680 in words is "sixty-eight billion, one hundred forty million, seventy-four thousand, six hundred eighty".