855000084823 has 2 divisors, whose sum is σ = 855000084824. Its totient is φ = 855000084822.

The previous prime is 855000084811. The next prime is 855000084871. The reversal of 855000084823 is 328480000558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855000084823 - 2¹³ = 855000076631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855000084823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855000084223) 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, 427500042411 + 427500042412.

It is an arithmetic number, because the mean of its divisors is an integer number (427500042412).

Almost surely, 2^855000084823 is an apocalyptic number.

855000084823 is a deficient number, since it is larger than the sum of its proper divisors (1).

855000084823 is an equidigital number, since it uses as much as digits as its factorization.

855000084823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 855000084823 in words is "eight hundred fifty-five billion, eighty-four thousand, eight hundred twenty-three".