8137705117 has 4 divisors (see below), whose sum is σ = 8160758460. Its totient is φ = 8114651776.

The previous prime is 8137705087. The next prime is 8137705123. The reversal of 8137705117 is 7115077318.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3074813401 + 5062891716 = 55451^2 + 71154^2 .

It is a cyclic number.

It is not a de Polignac number, because 8137705117 - 2¹¹ = 8137703069 is a prime.

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 8137705117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137705817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11526142 + ... + 11526847.

It is an arithmetic number, because the mean of its divisors is an integer number (2040189615).

Almost surely, 2^8137705117 is an apocalyptic number.

It is an amenable number.

8137705117 is a deficient number, since it is larger than the sum of its proper divisors (23053343).

8137705117 is a wasteful number, since it uses less digits than its factorization.

8137705117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23053342.

The product of its (nonzero) digits is 41160, while the sum is 40.

The square root of 8137705117 is about 90209.2296663706. The cubic root of 8137705117 is about 2011.4102062198.

The spelling of 8137705117 in words is "eight billion, one hundred thirty-seven million, seven hundred five thousand, one hundred seventeen".