68071370680 has 128 divisors (see below), whose sum is σ = 163949184000. Its totient is φ = 25361856000.

The previous prime is 68071370671. The next prime is 68071370683. The reversal of 68071370680 is 8607317086.

It is a self number, because there is not a number n which added to its sum of digits gives 68071370680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68071370683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15067782 + ... + 15072298.

It is an arithmetic number, because the mean of its divisors is an integer number (1280853000).

Almost surely, 2^68071370680 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 68071370680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81974592000).

68071370680 is an abundant number, since it is smaller than the sum of its proper divisors (95877813320).

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

68071370680 is a wasteful number, since it uses less digits than its factorization.

68071370680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 68071370680 in words is "sixty-eight billion, seventy-one million, three hundred seventy thousand, six hundred eighty".