8272891065 has 32 divisors (see below), whose sum is σ = 13463424000. Its totient is φ = 4336715520.

The previous prime is 8272891057. The next prime is 8272891069. The reversal of 8272891065 is 5601982728.

It is not a de Polignac number, because 8272891065 - 2³ = 8272891057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8272891069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1781016 + ... + 1785654.

It is an arithmetic number, because the mean of its divisors is an integer number (420732000).

Almost surely, 2^8272891065 is an apocalyptic number.

It is an amenable number.

8272891065 is a deficient number, since it is larger than the sum of its proper divisors (5190532935).

8272891065 is a wasteful number, since it uses less digits than its factorization.

8272891065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6657.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 8272891065 is about 90955.4344995394. The cubic root of 8272891065 is about 2022.4871387860.

The spelling of 8272891065 in words is "eight billion, two hundred seventy-two million, eight hundred ninety-one thousand, sixty-five".