8531771272 has 16 divisors (see below), whose sum is σ = 16068810240. Its totient is φ = 4246755216.

The previous prime is 8531771263. The next prime is 8531771273. The reversal of 8531771272 is 2721771358.

It is a super-2 number, since 2×8531771272² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8531771273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389408 + ... + 2392975.

It is an arithmetic number, because the mean of its divisors is an integer number (1004300640).

Almost surely, 2^8531771272 is an apocalyptic number.

It is an amenable number.

8531771272 is a deficient number, since it is larger than the sum of its proper divisors (7537038968).

8531771272 is a wasteful number, since it uses less digits than its factorization.

8531771272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782612 (or 4782608 counting only the distinct ones).

The product of its digits is 164640, while the sum is 43.

The square root of 8531771272 is about 92367.5877783977. The cubic root of 8531771272 is about 2043.3671222806.

It can be divided in two parts, 8 and 531771272, that multiplied together give a square (4254170176 = 65224²).

The spelling of 8531771272 in words is "eight billion, five hundred thirty-one million, seven hundred seventy-one thousand, two hundred seventy-two".