28855652171 has 2 divisors, whose sum is σ = 28855652172. Its totient is φ = 28855652170.

The previous prime is 28855652149. The next prime is 28855652213. The reversal of 28855652171 is 17125655882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28855652171 - 2²⁶ = 28788543307 is a prime.

It is not a weakly prime, because it can be changed into another prime (28855652141) 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 as a sum of consecutive naturals, namely, 14427826085 + 14427826086.

It is an arithmetic number, because the mean of its divisors is an integer number (14427826086).

Almost surely, 2^28855652171 is an apocalyptic number.

28855652171 is a deficient number, since it is larger than the sum of its proper divisors (1).

28855652171 is an equidigital number, since it uses as much as digits as its factorization.

28855652171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344000, while the sum is 50.

The spelling of 28855652171 in words is "twenty-eight billion, eight hundred fifty-five million, six hundred fifty-two thousand, one hundred seventy-one".