67381872188 has 24 divisors (see below), whose sum is σ = 118224288000. Its totient is φ = 33603585840.

The previous prime is 67381872179. The next prime is 67381872203. The reversal of 67381872188 is 88127818376.

67381872188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725495 + ... + 3743537.

It is an arithmetic number, because the mean of its divisors is an integer number (4926012000).

Almost surely, 2^67381872188 is an apocalyptic number.

It is an amenable number.

67381872188 is a deficient number, since it is larger than the sum of its proper divisors (50842415812).

67381872188 is a wasteful number, since it uses less digits than its factorization.

67381872188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20417 (or 20415 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 59.

The spelling of 67381872188 in words is "sixty-seven billion, three hundred eighty-one million, eight hundred seventy-two thousand, one hundred eighty-eight".