67189648212 has 18 divisors (see below), whose sum is σ = 169840499738. Its totient is φ = 22396549392.

The previous prime is 67189648193. The next prime is 67189648277. The reversal of 67189648212 is 21284698176.

It is a happy number.

67189648212 is a `hidden beast` number, since 6 + 71 + 8 + 96 + 482 + 1 + 2 = 666.

67189648212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 67094468676 + 95179536 = 259026^2 + 9756^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 933189523 + ... + 933189594.

Almost surely, 2^67189648212 is an apocalyptic number.

It is an amenable number.

67189648212 is an abundant number, since it is smaller than the sum of its proper divisors (102650851526).

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

67189648212 is a wasteful number, since it uses less digits than its factorization.

67189648212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866379127 (or 1866379122 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The spelling of 67189648212 in words is "sixty-seven billion, one hundred eighty-nine million, six hundred forty-eight thousand, two hundred twelve".