9817137163811 has 4 divisors (see below), whose sum is σ = 9840455779824. Its totient is φ = 9793818547800.

The previous prime is 9817137163733. The next prime is 9817137163859. The reversal of 9817137163811 is 1183617317189.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9817137163811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9817137163871) 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, 11659307375 + ... + 11659308216.

It is an arithmetic number, because the mean of its divisors is an integer number (2460113944956).

Almost surely, 2^{9817137163811} is an apocalyptic number.

9817137163811 is a deficient number, since it is larger than the sum of its proper divisors (23318616013).

9817137163811 is a wasteful number, since it uses less digits than its factorization.

9817137163811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23318616012.

The product of its digits is 1524096, while the sum is 56.

The spelling of 9817137163811 in words is "nine trillion, eight hundred seventeen billion, one hundred thirty-seven million, one hundred sixty-three thousand, eight hundred eleven".