67667862412 has 6 divisors (see below), whose sum is σ = 118418759228. Its totient is φ = 33833931204.

The previous prime is 67667862397. The next prime is 67667862419. The reversal of 67667862412 is 21426876676.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67667862419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8458482798 + ... + 8458482805.

Almost surely, 2^67667862412 is an apocalyptic number.

It is an amenable number.

67667862412 is a deficient number, since it is larger than the sum of its proper divisors (50750896816).

67667862412 is a wasteful number, since it uses less digits than its factorization.

67667862412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16916965607 (or 16916965605 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 55.

The spelling of 67667862412 in words is "sixty-seven billion, six hundred sixty-seven million, eight hundred sixty-two thousand, four hundred twelve".