9865354535689 has 4 divisors (see below), whose sum is σ = 9865518769360. Its totient is φ = 9865190302020.

The previous prime is 9865354535677. The next prime is 9865354535789.

It is a happy number.

9865354535689 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9865354535689 - 2¹¹ = 9865354533641 is a prime.

It is a super-2 number, since 2×9865354535689² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9865354535609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82026699 + ... + 82146880.

It is an arithmetic number, because the mean of its divisors is an integer number (2466379692340).

Almost surely, 2^{9865354535689} is an apocalyptic number.

It is an amenable number.

9865354535689 is a deficient number, since it is larger than the sum of its proper divisors (164233671).

9865354535689 is a wasteful number, since it uses less digits than its factorization.

9865354535689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164233670.

The product of its digits is 4199040000, while the sum is 76.

The spelling of 9865354535689 in words is "nine trillion, eight hundred sixty-five billion, three hundred fifty-four million, five hundred thirty-five thousand, six hundred eighty-nine".