67957438689 has 24 divisors (see below), whose sum is σ = 112610289792. Its totient is φ = 38685159360.

The previous prime is 67957438673. The next prime is 67957438709. The reversal of 67957438689 is 98683475976.

67957438689 is a `hidden beast` number, since 67 + 9 + 57 + 438 + 6 + 89 = 666.

67957438689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67957438689 - 2⁴ = 67957438673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67957438669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034172 + ... + 2067309.

It is an arithmetic number, because the mean of its divisors is an integer number (4692095408).

Almost surely, 2^67957438689 is an apocalyptic number.

It is an amenable number.

67957438689 is a deficient number, since it is larger than the sum of its proper divisors (44652851103).

67957438689 is a wasteful number, since it uses less digits than its factorization.

67957438689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101757 (or 4101754 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 72.

The spelling of 67957438689 in words is "sixty-seven billion, nine hundred fifty-seven million, four hundred thirty-eight thousand, six hundred eighty-nine".