5178172187 has 8 divisors (see below), whose sum is σ = 5313048576. Its totient is φ = 5043952872.

The previous prime is 5178172151. The next prime is 5178172189. The reversal of 5178172187 is 7812718715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5178172187 - 2⁶ = 5178172123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5178172189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148283 + ... + 179844.

It is an arithmetic number, because the mean of its divisors is an integer number (664131072).

Almost surely, 2^5178172187 is an apocalyptic number.

5178172187 is a deficient number, since it is larger than the sum of its proper divisors (134876389).

5178172187 is a wasteful number, since it uses less digits than its factorization.

5178172187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328537.

The product of its digits is 219520, while the sum is 47.

The square root of 5178172187 is about 71959.5176957156. The cubic root of 5178172187 is about 1730.0506948291.

The spelling of 5178172187 in words is "five billion, one hundred seventy-eight million, one hundred seventy-two thousand, one hundred eighty-seven".