68488680 has 128 divisors (see below), whose sum is σ = 226638720. Its totient is φ = 16450560.

The previous prime is 68488663. The next prime is 68488681. The reversal of 68488680 is 8688486.

It is not an unprimeable number, because it can be changed into a prime (68488681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66570 + ... + 67590.

It is an arithmetic number, because the mean of its divisors is an integer number (1770615).

Almost surely, 2^68488680 is an apocalyptic number.

68488680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68488680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113319360).

68488680 is an abundant number, since it is smaller than the sum of its proper divisors (158150040).

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

68488680 is a wasteful number, since it uses less digits than its factorization.

68488680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 68488680 is about 8275.7887841583. The cubic root of 68488680 is about 409.1409337704.

The spelling of 68488680 in words is "sixty-eight million, four hundred eighty-eight thousand, six hundred eighty".