6441426213 has 4 divisors (see below), whose sum is σ = 8588568288. Its totient is φ = 4294284140.

The previous prime is 6441426193. The next prime is 6441426241. The reversal of 6441426213 is 3126241446.

It is a happy number.

6441426213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6441426213 - 2⁵ = 6441426181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441226213) 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, 1073571033 + ... + 1073571038.

It is an arithmetic number, because the mean of its divisors is an integer number (2147142072).

Almost surely, 2^6441426213 is an apocalyptic number.

It is an amenable number.

6441426213 is a deficient number, since it is larger than the sum of its proper divisors (2147142075).

6441426213 is a wasteful number, since it uses less digits than its factorization.

6441426213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147142074.

The product of its digits is 27648, while the sum is 33.

The square root of 6441426213 is about 80258.4962044518. The cubic root of 6441426213 is about 1860.6328263507.

Adding to 6441426213 its reverse (3126241446), we get a palindrome (9567667659).

The spelling of 6441426213 in words is "six billion, four hundred forty-one million, four hundred twenty-six thousand, two hundred thirteen".