8222768257 has 8 divisors (see below), whose sum is σ = 9279613440. Its totient is φ = 7217476560.

The previous prime is 8222768231. The next prime is 8222768303. The reversal of 8222768257 is 7528672228.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8222768257 - 2⁷ = 8222768129 is a prime.

It is a super-2 number, since 2×8222768257² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8222768257.

It is not an unprimeable number, because it can be changed into a prime (8222768857) 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 7 ways as a sum of consecutive naturals, for example, 12888033 + ... + 12888670.

It is an arithmetic number, because the mean of its divisors is an integer number (1159951680).

Almost surely, 2^8222768257 is an apocalyptic number.

It is an amenable number.

8222768257 is a deficient number, since it is larger than the sum of its proper divisors (1056845183).

8222768257 is a wasteful number, since it uses less digits than its factorization.

8222768257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25776743.

The product of its digits is 1505280, while the sum is 49.

The square root of 8222768257 is about 90679.4809038958. The cubic root of 8222768257 is about 2018.3943271359.

The spelling of 8222768257 in words is "eight billion, two hundred twenty-two million, seven hundred sixty-eight thousand, two hundred fifty-seven".