68582915544 has 256 divisors, whose sum is σ = 207531072000. Its totient is φ = 18606551040.

The previous prime is 68582915537. The next prime is 68582915561. The reversal of 68582915544 is 44551928586.

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, 53205652 + ... + 53206940.

It is an arithmetic number, because the mean of its divisors is an integer number (810668250).

Almost surely, 2^68582915544 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 68582915544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103765536000).

68582915544 is an abundant number, since it is smaller than the sum of its proper divisors (138948156456).

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

68582915544 is a wasteful number, since it uses less digits than its factorization.

68582915544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1774 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 57.

The spelling of 68582915544 in words is "sixty-eight billion, five hundred eighty-two million, nine hundred fifteen thousand, five hundred forty-four".