68064558744 has 128 divisors (see below), whose sum is σ = 209697546240. Its totient is φ = 17928110592.

The previous prime is 68064558739. The next prime is 68064558787. The reversal of 68064558744 is 44785546086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1721097 + ... + 1760199.

It is an arithmetic number, because the mean of its divisors is an integer number (1638262080).

Almost surely, 2^68064558744 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 68064558744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104848773120).

68064558744 is an abundant number, since it is smaller than the sum of its proper divisors (141632987496).

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

68064558744 is a wasteful number, since it uses less digits than its factorization.

68064558744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39929 (or 39925 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 68064558744 in words is "sixty-eight billion, sixty-four million, five hundred fifty-eight thousand, seven hundred forty-four".