8271215808 has 112 divisors (see below), whose sum is σ = 22526524416. Its totient is φ = 2676925440.

The previous prime is 8271215791. The next prime is 8271215809. The reversal of 8271215808 is 8085121728.

It is a self number, because there is not a number n which added to its sum of digits gives 8271215808.

It is not an unprimeable number, because it can be changed into a prime (8271215809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425393 + ... + 1431183.

Almost surely, 2^8271215808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8271215808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11263262208).

8271215808 is an abundant number, since it is smaller than the sum of its proper divisors (14255308608).

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

8271215808 is a wasteful number, since it uses less digits than its factorization.

8271215808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6022 (or 6012 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 8271215808 is about 90946.2248144474. The cubic root of 8271215808 is about 2022.3506119686.

The spelling of 8271215808 in words is "eight billion, two hundred seventy-one million, two hundred fifteen thousand, eight hundred eight".