8111478017 has 4 divisors (see below), whose sum is σ = 8129073876. Its totient is φ = 8093882160.

The previous prime is 8111478013. The next prime is 8111478029. The reversal of 8111478017 is 7108741118.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7108741118 = 2 ⋅3554370559.

It can be written as a sum of positive squares in 2 ways, for example, as 5411220721 + 2700257296 = 73561^2 + 51964^2 .

It is a cyclic number.

It is not a de Polignac number, because 8111478017 - 2² = 8111478013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8111478013) 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, 8797238 + ... + 8798159.

It is an arithmetic number, because the mean of its divisors is an integer number (2032268469).

Almost surely, 2^8111478017 is an apocalyptic number.

It is an amenable number.

8111478017 is a deficient number, since it is larger than the sum of its proper divisors (17595859).

8111478017 is a wasteful number, since it uses less digits than its factorization.

8111478017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17595858.

The product of its (nonzero) digits is 12544, while the sum is 38.

The square root of 8111478017 is about 90063.7441871034. The cubic root of 8111478017 is about 2009.2470152142.

The spelling of 8111478017 in words is "eight billion, one hundred eleven million, four hundred seventy-eight thousand, seventeen".