9671209117847 has 16 divisors (see below), whose sum is σ = 10269420682752. Its totient is φ = 9076261833600.

The previous prime is 9671209117789. The next prime is 9671209117957. The reversal of 9671209117847 is 7487119021769.

It is a cyclic number.

It is not a de Polignac number, because 9671209117847 - 2⁶ = 9671209117783 is a prime.

It is a super-2 number, since 2×9671209117847² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9671209117847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9671209117747) 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, 46832972 + ... + 47039022.

It is an arithmetic number, because the mean of its divisors is an integer number (641838792672).

Almost surely, 2^{9671209117847} is an apocalyptic number.

9671209117847 is a deficient number, since it is larger than the sum of its proper divisors (598211564905).

9671209117847 is a wasteful number, since it uses less digits than its factorization.

9671209117847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213958.

The product of its (nonzero) digits is 10668672, while the sum is 62.

The spelling of 9671209117847 in words is "nine trillion, six hundred seventy-one billion, two hundred nine million, one hundred seventeen thousand, eight hundred forty-seven".