6426221119693 has 2 divisors, whose sum is σ = 6426221119694. Its totient is φ = 6426221119692.

The previous prime is 6426221119673. The next prime is 6426221119699. The reversal of 6426221119693 is 3969111226246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5881609591209 + 544611528484 = 2425203^2 + 737978^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426221119693 - 2⁹ = 6426221119181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6426221119693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6426221119699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213110559846 + 3213110559847.

It is an arithmetic number, because the mean of its divisors is an integer number (3213110559847).

Almost surely, 2^{6426221119693} is an apocalyptic number.

It is an amenable number.

6426221119693 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426221119693 is an equidigital number, since it uses as much as digits as its factorization.

6426221119693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 52.

The spelling of 6426221119693 in words is "six trillion, four hundred twenty-six billion, two hundred twenty-one million, one hundred nineteen thousand, six hundred ninety-three".