8538171723 has 6 divisors (see below), whose sum is σ = 12332914724. Its totient is φ = 5692114476.

The previous prime is 8538171709. The next prime is 8538171727. The reversal of 8538171723 is 3271718358.

It is not a de Polignac number, because 8538171723 - 2⁹ = 8538171211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8538171727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 474342865 + ... + 474342882.

Almost surely, 2^8538171723 is an apocalyptic number.

8538171723 is a deficient number, since it is larger than the sum of its proper divisors (3794743001).

8538171723 is a wasteful number, since it uses less digits than its factorization.

8538171723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948685753 (or 948685750 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 8538171723 is about 92402.2279114524. The cubic root of 8538171723 is about 2043.8779658729.

The spelling of 8538171723 in words is "eight billion, five hundred thirty-eight million, one hundred seventy-one thousand, seven hundred twenty-three".