8271022689 has 12 divisors (see below), whose sum is σ = 11947860756. Its totient is φ = 5513632992.

The previous prime is 8271022681. The next prime is 8271022703. The reversal of 8271022689 is 9862201728.

It can be written as a sum of positive squares in 2 ways, for example, as 5419462689 + 2851560000 = 73617^2 + 53400^2 .

It is not a de Polignac number, because 8271022689 - 2³ = 8271022681 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8271022681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178039 + ... + 219635.

It is an arithmetic number, because the mean of its divisors is an integer number (995655063).

Almost surely, 2^8271022689 is an apocalyptic number.

It is an amenable number.

8271022689 is a deficient number, since it is larger than the sum of its proper divisors (3676838067).

8271022689 is a wasteful number, since it uses less digits than its factorization.

8271022689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63696 (or 63693 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 8271022689 is about 90945.1630874342. The cubic root of 8271022689 is about 2022.3348723491.

The spelling of 8271022689 in words is "eight billion, two hundred seventy-one million, twenty-two thousand, six hundred eighty-nine".