28179065289 has 16 divisors (see below), whose sum is σ = 38186330112. Its totient is φ = 18480267648.

The previous prime is 28179065287. The next prime is 28179065311. The reversal of 28179065289 is 98256097182.

It is a happy number.

It is not a de Polignac number, because 28179065289 - 2¹ = 28179065287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28179065287) 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 15 ways as a sum of consecutive naturals, for example, 84102 + ... + 251855.

It is an arithmetic number, because the mean of its divisors is an integer number (2386645632).

Almost surely, 2^28179065289 is an apocalyptic number.

It is an amenable number.

28179065289 is a deficient number, since it is larger than the sum of its proper divisors (10007264823).

28179065289 is a wasteful number, since it uses less digits than its factorization.

28179065289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336416.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 28179065289 in words is "twenty-eight billion, one hundred seventy-nine million, sixty-five thousand, two hundred eighty-nine".