68740180992 has 264 divisors, whose sum is σ = 227366938656. Its totient is φ = 19594543104.

The previous prime is 68740180961. The next prime is 68740181009. The reversal of 68740180992 is 29908104786.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35932228 + ... + 35934140.

It is an arithmetic number, because the mean of its divisors is an integer number (861238404).

Almost surely, 2^68740180992 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 68740180992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113683469328).

68740180992 is an abundant number, since it is smaller than the sum of its proper divisors (158626757664).

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

68740180992 is a wasteful number, since it uses less digits than its factorization.

68740180992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 68740180992 in words is "sixty-eight billion, seven hundred forty million, one hundred eighty thousand, nine hundred ninety-two".