67128041626828 has 48 divisors (see below), whose sum is σ = 144859924921600. Its totient is φ = 26505371686464.

The previous prime is 67128041626817. The next prime is 67128041626831. The reversal of 67128041626828 is 82862614082176.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176117178 + ... + 176497921.

Almost surely, 2^{67128041626828} is an apocalyptic number.

It is an amenable number.

67128041626828 is an abundant number, since it is smaller than the sum of its proper divisors (77731883294772).

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

67128041626828 is a wasteful number, since it uses less digits than its factorization.

67128041626828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352615646 (or 352615644 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 61.

The spelling of 67128041626828 in words is "sixty-seven trillion, one hundred twenty-eight billion, forty-one million, six hundred twenty-six thousand, eight hundred twenty-eight".