6422886817 has 2 divisors, whose sum is σ = 6422886818. Its totient is φ = 6422886816.

The previous prime is 6422886797. The next prime is 6422886893. The reversal of 6422886817 is 7186882246.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4741148736 + 1681738081 = 68856^2 + 41009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6422886817 is a prime.

It is not a weakly prime, because it can be changed into another prime (6422886017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211443408 + 3211443409.

It is an arithmetic number, because the mean of its divisors is an integer number (3211443409).

Almost surely, 2^6422886817 is an apocalyptic number.

It is an amenable number.

6422886817 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422886817 is an equidigital number, since it uses as much as digits as its factorization.

6422886817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 52.

The square root of 6422886817 is about 80142.9149519781. The cubic root of 6422886817 is about 1858.8460504308.

The spelling of 6422886817 in words is "six billion, four hundred twenty-two million, eight hundred eighty-six thousand, eight hundred seventeen".