28178251183 has 2 divisors, whose sum is σ = 28178251184. Its totient is φ = 28178251182.

The previous prime is 28178251177. The next prime is 28178251217. The reversal of 28178251183 is 38115287182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28178251183 - 2⁵ = 28178251151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28178257183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14089125591 + 14089125592.

It is an arithmetic number, because the mean of its divisors is an integer number (14089125592).

Almost surely, 2^28178251183 is an apocalyptic number.

28178251183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28178251183 is an equidigital number, since it uses as much as digits as its factorization.

28178251183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 46.

The spelling of 28178251183 in words is "twenty-eight billion, one hundred seventy-eight million, two hundred fifty-one thousand, one hundred eighty-three".