8227899681 has 16 divisors (see below), whose sum is σ = 11130882048. Its totient is φ = 5405173200.

The previous prime is 8227899677. The next prime is 8227899703. The reversal of 8227899681 is 1869987228.

It is not a de Polignac number, because 8227899681 - 2² = 8227899677 is a prime.

It is a super-2 number, since 2×8227899681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8227899601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444840 + ... + 462966.

It is an arithmetic number, because the mean of its divisors is an integer number (695680128).

Almost surely, 2^8227899681 is an apocalyptic number.

It is an amenable number.

8227899681 is a deficient number, since it is larger than the sum of its proper divisors (2902982367).

8227899681 is a wasteful number, since it uses less digits than its factorization.

8227899681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20332.

The product of its digits is 6967296, while the sum is 60.

The square root of 8227899681 is about 90707.7707861901. The cubic root of 8227899681 is about 2018.8140999357.

The spelling of 8227899681 in words is "eight billion, two hundred twenty-seven million, eight hundred ninety-nine thousand, six hundred eighty-one".