67808857167 has 12 divisors (see below), whose sum is σ = 97954919920. Its totient is φ = 45201846528.

The previous prime is 67808857141. The next prime is 67808857183. The reversal of 67808857167 is 76175880876.

It is not a de Polignac number, because 67808857167 - 2¹¹ = 67808855119 is a prime.

It is a super-2 number, since 2×67808857167² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67808857367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230563 + ... + 434484.

Almost surely, 2^67808857167 is an apocalyptic number.

67808857167 is a deficient number, since it is larger than the sum of its proper divisors (30146062753).

67808857167 is a wasteful number, since it uses less digits than its factorization.

67808857167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676382 (or 676379 counting only the distinct ones).

The product of its (nonzero) digits is 31610880, while the sum is 63.

The spelling of 67808857167 in words is "sixty-seven billion, eight hundred eight million, eight hundred fifty-seven thousand, one hundred sixty-seven".