6271717172 has 18 divisors (see below), whose sum is σ = 12767424642. Its totient is φ = 2687878704.

The previous prime is 6271717147. The next prime is 6271717183. The reversal of 6271717172 is 2717171726.

It can be written as a sum of positive squares in only one way, i.e., 5996024356 + 275692816 = 77434^2 + 16604^2 .

It is a congruent number.

It is an unprimeable number.

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, 15999083 + ... + 15999474.

It is an arithmetic number, because the mean of its divisors is an integer number (709301369).

Almost surely, 2^6271717172 is an apocalyptic number.

It is an amenable number.

6271717172 is an abundant number, since it is smaller than the sum of its proper divisors (6495707470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6271717172 is a wasteful number, since it uses less digits than its factorization.

6271717172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31998575 (or 31998566 counting only the distinct ones).

The product of its digits is 57624, while the sum is 41.

The square root of 6271717172 is about 79194.1738513636. The cubic root of 6271717172 is about 1844.1467961585.

Adding to 6271717172 its reverse (2717171726), we get a palindrome (8988888898).

The spelling of 6271717172 in words is "six billion, two hundred seventy-one million, seven hundred seventeen thousand, one hundred seventy-two".