68508680 has 64 divisors (see below), whose sum is σ = 163944000. Its totient is φ = 25691904.

The previous prime is 68508679. The next prime is 68508689. The reversal of 68508680 is 8680586.

It is not an unprimeable number, because it can be changed into a prime (68508689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82427 + ... + 83253.

It is an arithmetic number, because the mean of its divisors is an integer number (2561625).

Almost surely, 2^68508680 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 68508680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81972000).

68508680 is an abundant number, since it is smaller than the sum of its proper divisors (95435320).

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

68508680 is a wasteful number, since it uses less digits than its factorization.

68508680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 68508680 is about 8276.9970399898. The cubic root of 68508680 is about 409.1807555448.

The spelling of 68508680 in words is "sixty-eight million, five hundred eight thousand, six hundred eighty".