8278281216 has 88 divisors (see below), whose sum is σ = 24516345840. Its totient is φ = 2759417856.

The previous prime is 8278281169. The next prime is 8278281229. The reversal of 8278281216 is 6121828728.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122061 + ... + 177356.

Almost surely, 2^8278281216 is an apocalyptic number.

It is an amenable number.

8278281216 is an abundant number, since it is smaller than the sum of its proper divisors (16238064624).

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

8278281216 is a wasteful number, since it uses less digits than its factorization.

8278281216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299446 (or 299422 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 8278281216 is about 90985.0604000459. The cubic root of 8278281216 is about 2022.9262897527.

The spelling of 8278281216 in words is "eight billion, two hundred seventy-eight million, two hundred eighty-one thousand, two hundred sixteen".