851783024117 has 2 divisors, whose sum is σ = 851783024118. Its totient is φ = 851783024116.

The previous prime is 851783024011. The next prime is 851783024119. The reversal of 851783024117 is 711420387158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777202691281 + 74580332836 = 881591^2 + 273094^2 .

It is a cyclic number.

It is not a de Polignac number, because 851783024117 - 2²⁴ = 851766246901 is a prime.

Together with 851783024119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (851783024119) 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, 425891512058 + 425891512059.

It is an arithmetic number, because the mean of its divisors is an integer number (425891512059).

Almost surely, 2^851783024117 is an apocalyptic number.

It is an amenable number.

851783024117 is a deficient number, since it is larger than the sum of its proper divisors (1).

851783024117 is an equidigital number, since it uses as much as digits as its factorization.

851783024117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 851783024117 in words is "eight hundred fifty-one billion, seven hundred eighty-three million, twenty-four thousand, one hundred seventeen".