28601836171 has 2 divisors, whose sum is σ = 28601836172. Its totient is φ = 28601836170.

The previous prime is 28601836169. The next prime is 28601836247. The reversal of 28601836171 is 17163810682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28601836171 - 2¹ = 28601836169 is a prime.

Together with 28601836169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28601836141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300918085 + 14300918086.

It is an arithmetic number, because the mean of its divisors is an integer number (14300918086).

Almost surely, 2^28601836171 is an apocalyptic number.

28601836171 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601836171 is an equidigital number, since it uses as much as digits as its factorization.

28601836171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 28601836171 in words is "twenty-eight billion, six hundred one million, eight hundred thirty-six thousand, one hundred seventy-one".