68518912 has 132 divisors (see below), whose sum is σ = 174240640. Its totient is φ = 26357760.

The previous prime is 68518889. The next prime is 68518943. The reversal of 68518912 is 21981586.

Its product of digits (34560) is a multiple of the sum of its prime factors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 867289 + ... + 867367.

Almost surely, 2^68518912 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 68518912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87120320).

68518912 is an abundant number, since it is smaller than the sum of its proper divisors (105721728).

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

68518912 is a wasteful number, since it uses less digits than its factorization.

68518912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 99 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 68518912 is about 8277.6151154786. The cubic root of 68518912 is about 409.2011253679.

The spelling of 68518912 in words is "sixty-eight million, five hundred eighteen thousand, nine hundred twelve".