68068672 has 28 divisors (see below), whose sum is σ = 154371040. Its totient is φ = 29172096.

The previous prime is 68068669. The next prime is 68068673. The reversal of 68068672 is 27686086.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68068673) 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, 75522 + ... + 76417.

Almost surely, 2^68068672 is an apocalyptic number.

It is an amenable number.

68068672 is an abundant number, since it is smaller than the sum of its proper divisors (86302368).

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

68068672 is a wasteful number, since it uses less digits than its factorization.

68068672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151958 (or 151948 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 68068672 is about 8250.3740521264. The cubic root of 68068672 is about 408.3028636804.

The spelling of 68068672 in words is "sixty-eight million, sixty-eight thousand, six hundred seventy-two".