8172255471 has 8 divisors (see below), whose sum is σ = 11469832320. Its totient is φ = 5161424472.

The previous prime is 8172255463. The next prime is 8172255493. The reversal of 8172255471 is 1745522718.

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

It is not a de Polignac number, because 8172255471 - 2³ = 8172255463 is a prime.

It is a super-3 number, since 3×8172255471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8172255401) 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, 71686395 + ... + 71686508.

It is an arithmetic number, because the mean of its divisors is an integer number (1433729040).

Almost surely, 2^8172255471 is an apocalyptic number.

8172255471 is a deficient number, since it is larger than the sum of its proper divisors (3297576849).

8172255471 is a wasteful number, since it uses less digits than its factorization.

8172255471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143372925.

The product of its digits is 156800, while the sum is 42.

The square root of 8172255471 is about 90400.5280460242. The cubic root of 8172255471 is about 2014.2528100074.

The spelling of 8172255471 in words is "eight billion, one hundred seventy-two million, two hundred fifty-five thousand, four hundred seventy-one".