68280080 has 40 divisors (see below), whose sum is σ = 173185344. Its totient is φ = 24828800.

The previous prime is 68280071. The next prime is 68280083. The reversal of 68280080 is 8008286.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (68280083) 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 7 ways as a sum of consecutive naturals, for example, 37916 + ... + 39675.

Almost surely, 2^68280080 is an apocalyptic number.

It is an amenable number.

68280080 is an abundant number, since it is smaller than the sum of its proper divisors (104905264).

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

68280080 is a wasteful number, since it uses less digits than its factorization.

68280080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77615 (or 77609 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 68280080 is about 8263.1761448005. The cubic root of 68280080 is about 408.7251298045.

The spelling of 68280080 in words is "sixty-eight million, two hundred eighty thousand, eighty".