85428183187 has 2 divisors, whose sum is σ = 85428183188. Its totient is φ = 85428183186.

The previous prime is 85428183163. The next prime is 85428183271. The reversal of 85428183187 is 78138182458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85428183187 - 2¹⁵ = 85428150419 is a prime.

It is not a weakly prime, because it can be changed into another prime (85428183587) 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 as a sum of consecutive naturals, namely, 42714091593 + 42714091594.

It is an arithmetic number, because the mean of its divisors is an integer number (42714091594).

Almost surely, 2^85428183187 is an apocalyptic number.

85428183187 is a deficient number, since it is larger than the sum of its proper divisors (1).

85428183187 is an equidigital number, since it uses as much as digits as its factorization.

85428183187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3440640, while the sum is 55.

The spelling of 85428183187 in words is "eighty-five billion, four hundred twenty-eight million, one hundred eighty-three thousand, one hundred eighty-seven".