28171466167 has 16 divisors (see below), whose sum is σ = 30480565248. Its totient is φ = 25882812000.

The previous prime is 28171466153. The next prime is 28171466209. The reversal of 28171466167 is 76166417182.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28171466167 - 2¹¹ = 28171464119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28171466167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28171466467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7773918 + ... + 7777540.

It is an arithmetic number, because the mean of its divisors is an integer number (1905035328).

Almost surely, 2^28171466167 is an apocalyptic number.

28171466167 is a deficient number, since it is larger than the sum of its proper divisors (2309099081).

28171466167 is a wasteful number, since it uses less digits than its factorization.

28171466167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270.

The product of its digits is 677376, while the sum is 49.

The spelling of 28171466167 in words is "twenty-eight billion, one hundred seventy-one million, four hundred sixty-six thousand, one hundred sixty-seven".