6422619689 has 4 divisors (see below), whose sum is σ = 6430929156. Its totient is φ = 6414310224.

The previous prime is 6422619673. The next prime is 6422619691. The reversal of 6422619689 is 9869162246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3264179689 + 3158440000 = 57133^2 + 56200^2 .

It is a cyclic number.

It is not a de Polignac number, because 6422619689 - 2⁴ = 6422619673 is a prime.

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 6422619689.

It is not an unprimeable number, because it can be changed into a prime (6422649689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4153574 + ... + 4155119.

It is an arithmetic number, because the mean of its divisors is an integer number (1607732289).

Almost surely, 2^6422619689 is an apocalyptic number.

It is an amenable number.

6422619689 is a deficient number, since it is larger than the sum of its proper divisors (8309467).

6422619689 is an equidigital number, since it uses as much as digits as its factorization.

6422619689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8309466.

The product of its digits is 2239488, while the sum is 53.

The square root of 6422619689 is about 80141.2483618767. The cubic root of 6422619689 is about 1858.8202802578.

The spelling of 6422619689 in words is "six billion, four hundred twenty-two million, six hundred nineteen thousand, six hundred eighty-nine".