8281697216 has 56 divisors (see below), whose sum is σ = 18467673504. Its totient is φ = 3656125440.

The previous prime is 8281697189. The next prime is 8281697251. The reversal of 8281697216 is 6127961828.

It is a congruent 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, 197255 + ... + 235526.

It is an arithmetic number, because the mean of its divisors is an integer number (329779884).

Almost surely, 2^8281697216 is an apocalyptic number.

It is an amenable number.

8281697216 is an abundant number, since it is smaller than the sum of its proper divisors (10185976288).

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

8281697216 is a wasteful number, since it uses less digits than its factorization.

8281697216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432829 (or 432819 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 8281697216 is about 91003.8307765118. The cubic root of 8281697216 is about 2023.2045023325.

The spelling of 8281697216 in words is "eight billion, two hundred eighty-one million, six hundred ninety-seven thousand, two hundred sixteen".