853869408717 has 16 divisors (see below), whose sum is σ = 1235722987520. Its totient is φ = 521320629312.

The previous prime is 853869408703. The next prime is 853869408727. The reversal of 853869408717 is 717804968358.

It is not a de Polignac number, because 853869408717 - 2¹⁰ = 853869407693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853869408727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86192242 + ... + 86202147.

It is an arithmetic number, because the mean of its divisors is an integer number (77232686720).

Almost surely, 2^853869408717 is an apocalyptic number.

It is an amenable number.

853869408717 is a deficient number, since it is larger than the sum of its proper divisors (381853578803).

853869408717 is a wasteful number, since it uses less digits than its factorization.

853869408717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172394532.

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 853869408717 in words is "eight hundred fifty-three billion, eight hundred sixty-nine million, four hundred eight thousand, seven hundred seventeen".