9671209117849 has 32 divisors (see below), whose sum is σ = 10212625152000. Its totient is φ = 9144335176704.

The previous prime is 9671209117789. The next prime is 9671209117957. The reversal of 9671209117849 is 9487119021769.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9671209117849 - 2¹³ = 9671209109657 is a prime.

It is a super-3 number, since 3×9671209117849³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9671209117049) 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 in 31 ways as a sum of consecutive naturals, for example, 3556897912 + ... + 3556900630.

It is an arithmetic number, because the mean of its divisors is an integer number (319144536000).

Almost surely, 2^{9671209117849} is an apocalyptic number.

It is an amenable number.

9671209117849 is a deficient number, since it is larger than the sum of its proper divisors (541416034151).

9671209117849 is a wasteful number, since it uses less digits than its factorization.

9671209117849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6297.

The product of its (nonzero) digits is 13716864, while the sum is 64.

The spelling of 9671209117849 in words is "nine trillion, six hundred seventy-one billion, two hundred nine million, one hundred seventeen thousand, eight hundred forty-nine".