8226685968399 has 24 divisors (see below), whose sum is σ = 12508533523200. Its totient is φ = 5195750942160.

The previous prime is 8226685968353. The next prime is 8226685968409. The reversal of 8226685968399 is 9938695866228.

8226685968399 is a `hidden beast` number, since 8 + 2 + 2 + 66 + 85 + 96 + 8 + 399 = 666.

It is a Cunningham number, because it is equal to 2868220²-1.

It is not a de Polignac number, because 8226685968399 - 2⁷ = 8226685968271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8226685968199) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25654644 + ... + 25973334.

It is an arithmetic number, because the mean of its divisors is an integer number (521188896800).

Almost surely, 2^{8226685968399} is an apocalyptic number.

8226685968399 is a deficient number, since it is larger than the sum of its proper divisors (4281847554801).

8226685968399 is a wasteful number, since it uses less digits than its factorization.

8226685968399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469675 (or 469672 counting only the distinct ones).

The product of its digits is 4837294080, while the sum is 81.

The spelling of 8226685968399 in words is "eight trillion, two hundred twenty-six billion, six hundred eighty-five million, nine hundred sixty-eight thousand, three hundred ninety-nine".