28545275179 has 4 divisors (see below), whose sum is σ = 28545631920. Its totient is φ = 28544918440.

The previous prime is 28545275167. The next prime is 28545275189. The reversal of 28545275179 is 97157254582.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28545275179 - 2⁵ = 28545275147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28545275149) 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 3 ways as a sum of consecutive naturals, for example, 3402 + ... + 238960.

It is an arithmetic number, because the mean of its divisors is an integer number (7136407980).

Almost surely, 2^28545275179 is an apocalyptic number.

28545275179 is a deficient number, since it is larger than the sum of its proper divisors (356741).

28545275179 is a wasteful number, since it uses less digits than its factorization.

28545275179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356740.

The product of its digits is 7056000, while the sum is 55.

The spelling of 28545275179 in words is "twenty-eight billion, five hundred forty-five million, two hundred seventy-five thousand, one hundred seventy-nine".