858327669349 has 2 divisors, whose sum is σ = 858327669350. Its totient is φ = 858327669348.

The previous prime is 858327669301. The next prime is 858327669421. The reversal of 858327669349 is 943966723858.

858327669349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 838702461249 + 19625208100 = 915807^2 + 140090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-858327669349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858327669149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429163834674 + 429163834675.

It is an arithmetic number, because the mean of its divisors is an integer number (429163834675).

Almost surely, 2^858327669349 is an apocalyptic number.

It is an amenable number.

858327669349 is a deficient number, since it is larger than the sum of its proper divisors (1).

858327669349 is an equidigital number, since it uses as much as digits as its factorization.

858327669349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470292480, while the sum is 70.

The spelling of 858327669349 in words is "eight hundred fifty-eight billion, three hundred twenty-seven million, six hundred sixty-nine thousand, three hundred forty-nine".