6426442313 has 4 divisors (see below), whose sum is σ = 6498649620. Its totient is φ = 6354235008.

The previous prime is 6426442303. The next prime is 6426442327. The reversal of 6426442313 is 3132446246.

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 3012143689 + 3414298624 = 54883^2 + 58432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426442313 - 2¹² = 6426438217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6426442303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36103520 + ... + 36103697.

It is an arithmetic number, because the mean of its divisors is an integer number (1624662405).

Almost surely, 2^6426442313 is an apocalyptic number.

It is an amenable number.

6426442313 is a deficient number, since it is larger than the sum of its proper divisors (72207307).

6426442313 is an equidigital number, since it uses as much as digits as its factorization.

6426442313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72207306.

The product of its digits is 82944, while the sum is 35.

The square root of 6426442313 is about 80165.0941058513. The cubic root of 6426442313 is about 1859.1889855590.

Adding to 6426442313 its reverse (3132446246), we get a palindrome (9558888559).

The spelling of 6426442313 in words is "six billion, four hundred twenty-six million, four hundred forty-two thousand, three hundred thirteen".