68128947024 has 80 divisors (see below), whose sum is σ = 178995460224. Its totient is φ = 22323571200.

The previous prime is 68128946993. The next prime is 68128947037. The reversal of 68128947024 is 42074982186.

It is a congruent number.

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, 5442757 + ... + 5455259.

Almost surely, 2^68128947024 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 68128947024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89497730112).

68128947024 is an abundant number, since it is smaller than the sum of its proper divisors (110866513200).

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

68128947024 is a wasteful number, since it uses less digits than its factorization.

68128947024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436 (or 14430 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 68128947024 in words is "sixty-eight billion, one hundred twenty-eight million, nine hundred forty-seven thousand, twenty-four".