8256912272 has 20 divisors (see below), whose sum is σ = 18283163136. Its totient is φ = 3538676640.

The previous prime is 8256912271. The next prime is 8256912311. The reversal of 8256912272 is 2722196528.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8256912271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36861104 + ... + 36861327.

Almost surely, 2^8256912272 is an apocalyptic number.

It is an amenable number.

8256912272 is an abundant number, since it is smaller than the sum of its proper divisors (10026250864).

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

8256912272 is a wasteful number, since it uses less digits than its factorization.

8256912272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73722446 (or 73722440 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 8256912272 is about 90867.5534610677. The cubic root of 8256912272 is about 2021.1841790447.

The spelling of 8256912272 in words is "eight billion, two hundred fifty-six million, nine hundred twelve thousand, two hundred seventy-two".