68808680 has 16 divisors (see below), whose sum is σ = 154819620. Its totient is φ = 27523456.

The previous prime is 68808679. The next prime is 68808683. The reversal of 68808680 is 8680886.

It can be written as a sum of positive squares in 2 ways, for example, as 68591524 + 217156 = 8282^2 + 466^2 .

It is not an unprimeable number, because it can be changed into a prime (68808683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860069 + ... + 860148.

Almost surely, 2^68808680 is an apocalyptic number.

It is an amenable number.

68808680 is an abundant number, since it is smaller than the sum of its proper divisors (86010940).

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

68808680 is a wasteful number, since it uses less digits than its factorization.

68808680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720228 (or 1720224 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 68808680 is about 8295.0997582910. The cubic root of 68808680 is about 409.7771543308. Note that the first 3 decimals are identical.

The spelling of 68808680 in words is "sixty-eight million, eight hundred eight thousand, six hundred eighty".