28166468835 has 32 divisors (see below), whose sum is σ = 45282219840. Its totient is φ = 14950268928.

The previous prime is 28166468833. The next prime is 28166468867. The reversal of 28166468835 is 53886466182.

It is not a de Polignac number, because 28166468835 - 2¹ = 28166468833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28166468833) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5506239 + ... + 5511351.

It is an arithmetic number, because the mean of its divisors is an integer number (1415069370).

Almost surely, 2^28166468835 is an apocalyptic number.

28166468835 is a deficient number, since it is larger than the sum of its proper divisors (17115751005).

28166468835 is a wasteful number, since it uses less digits than its factorization.

28166468835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807.

The product of its digits is 13271040, while the sum is 57.

The spelling of 28166468835 in words is "twenty-eight billion, one hundred sixty-six million, four hundred sixty-eight thousand, eight hundred thirty-five".