28147667185 has 16 divisors (see below), whose sum is σ = 36853266240. Its totient is φ = 20468024640.

The previous prime is 28147667131. The next prime is 28147667201. The reversal of 28147667185 is 58176674182.

It is not a de Polignac number, because 28147667185 - 2¹⁷ = 28147536113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382726 + ... + 450304.

It is an arithmetic number, because the mean of its divisors is an integer number (2303329140).

Almost surely, 2^28147667185 is an apocalyptic number.

It is an amenable number.

28147667185 is a deficient number, since it is larger than the sum of its proper divisors (8705599055).

28147667185 is a wasteful number, since it uses less digits than its factorization.

28147667185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75168.

The product of its digits is 4515840, while the sum is 55.

The spelling of 28147667185 in words is "twenty-eight billion, one hundred forty-seven million, six hundred sixty-seven thousand, one hundred eighty-five".