67678128 has 60 divisors (see below), whose sum is σ = 216465808. Its totient is φ = 19336320.

The previous prime is 67678067. The next prime is 67678151. The reversal of 67678128 is 82187676.

It is a nude number because it is divisible by every one of its digits.

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 11 ways as a sum of consecutive naturals, for example, 32563 + ... + 34578.

Almost surely, 2^67678128 is an apocalyptic number.

It is an amenable number.

67678128 is an abundant number, since it is smaller than the sum of its proper divisors (148787680).

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

67678128 is a wasteful number, since it uses less digits than its factorization.

67678128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67162 (or 67153 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 67678128 is about 8226.6717450011. The cubic root of 67678128 is about 407.5204862548.

The spelling of 67678128 in words is "sixty-seven million, six hundred seventy-eight thousand, one hundred twenty-eight".