856103152319 has 2 divisors, whose sum is σ = 856103152320. Its totient is φ = 856103152318.

The previous prime is 856103152297. The next prime is 856103152361. The reversal of 856103152319 is 913251301658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 856103152319 - 2³² = 851808185023 is a prime.

It is a super-3 number, since 3×856103152319³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 856103152319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856103152379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428051576159 + 428051576160.

It is an arithmetic number, because the mean of its divisors is an integer number (428051576160).

Almost surely, 2^856103152319 is an apocalyptic number.

856103152319 is a deficient number, since it is larger than the sum of its proper divisors (1).

856103152319 is an equidigital number, since it uses as much as digits as its factorization.

856103152319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 856103152319 in words is "eight hundred fifty-six billion, one hundred three million, one hundred fifty-two thousand, three hundred nineteen".