68512576 has 56 divisors (see below), whose sum is σ = 149266656. Its totient is φ = 30942720.

The previous prime is 68512571. The next prime is 68512579. The reversal of 68512576 is 67521586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68512571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215970 + ... + 216286.

It is an arithmetic number, because the mean of its divisors is an integer number (2665476).

Almost surely, 2^68512576 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 68512576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74633328).

68512576 is an abundant number, since it is smaller than the sum of its proper divisors (80754080).

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

68512576 is a wasteful number, since it uses less digits than its factorization.

68512576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 637 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 68512576 is about 8277.2323877006. The cubic root of 68512576 is about 409.1885119245.

The spelling of 68512576 in words is "sixty-eight million, five hundred twelve thousand, five hundred seventy-six".