6786428167 has 4 divisors (see below), whose sum is σ = 6786634536. Its totient is φ = 6786221800.

The previous prime is 6786428141. The next prime is 6786428221. The reversal of 6786428167 is 7618246876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6786428167 - 2⁷ = 6786428039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6786428107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41608 + ... + 123709.

It is an arithmetic number, because the mean of its divisors is an integer number (1696658634).

Almost surely, 2^6786428167 is an apocalyptic number.

6786428167 is a deficient number, since it is larger than the sum of its proper divisors (206369).

6786428167 is a wasteful number, since it uses less digits than its factorization.

6786428167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206368.

The product of its digits is 5419008, while the sum is 55.

The square root of 6786428167 is about 82379.7800858924. The cubic root of 6786428167 is about 1893.2752264459.

The spelling of 6786428167 in words is "six billion, seven hundred eighty-six million, four hundred twenty-eight thousand, one hundred sixty-seven".