856872824303 has 2 divisors, whose sum is σ = 856872824304. Its totient is φ = 856872824302.

The previous prime is 856872824233. The next prime is 856872824309. The reversal of 856872824303 is 303428278658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 856872824303 - 2¹⁶ = 856872758767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856872824309) 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, 428436412151 + 428436412152.

It is an arithmetic number, because the mean of its divisors is an integer number (428436412152).

Almost surely, 2^856872824303 is an apocalyptic number.

856872824303 is a deficient number, since it is larger than the sum of its proper divisors (1).

856872824303 is an equidigital number, since it uses as much as digits as its factorization.

856872824303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 856872824303 in words is "eight hundred fifty-six billion, eight hundred seventy-two million, eight hundred twenty-four thousand, three hundred three".