68547968 has 32 divisors (see below), whose sum is σ = 138615960. Its totient is φ = 33758208.

The previous prime is 68547959. The next prime is 68548009. The reversal of 68547968 is 86974586.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4580 + ... + 12572.

Almost surely, 2^68547968 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 68547968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69307980).

68547968 is an abundant number, since it is smaller than the sum of its proper divisors (70067992).

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

68547968 is an equidigital number, since it uses as much as digits as its factorization.

68547968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8074 (or 8062 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 68547968 is about 8279.3700243436. The cubic root of 68547968 is about 409.2589588783.

The spelling of 68547968 in words is "sixty-eight million, five hundred forty-seven thousand, nine hundred sixty-eight".