28855262171 has 8 divisors (see below), whose sum is σ = 32160664080. Its totient is φ = 25728530688.

The previous prime is 28855262159. The next prime is 28855262173. The reversal of 28855262171 is 17126255882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28855262171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28855262173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44667266 + ... + 44667911.

It is an arithmetic number, because the mean of its divisors is an integer number (4020083010).

Almost surely, 2^28855262171 is an apocalyptic number.

28855262171 is a deficient number, since it is larger than the sum of its proper divisors (3305401909).

28855262171 is a wasteful number, since it uses less digits than its factorization.

28855262171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89335213.

The product of its digits is 537600, while the sum is 47.

The spelling of 28855262171 in words is "twenty-eight billion, eight hundred fifty-five million, two hundred sixty-two thousand, one hundred seventy-one".