6421543341 has 8 divisors (see below), whose sum is σ = 8857301280. Its totient is φ = 4133407152.

The previous prime is 6421543339. The next prime is 6421543357. The reversal of 6421543341 is 1433451246.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6421543341 - 2¹ = 6421543339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421542341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36905335 + ... + 36905508.

It is an arithmetic number, because the mean of its divisors is an integer number (1107162660).

Almost surely, 2^6421543341 is an apocalyptic number.

It is an amenable number.

6421543341 is a deficient number, since it is larger than the sum of its proper divisors (2435757939).

6421543341 is a wasteful number, since it uses less digits than its factorization.

6421543341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73810875.

The product of its digits is 34560, while the sum is 33.

The square root of 6421543341 is about 80134.5327620995. The cubic root of 6421543341 is about 1858.7164363767.

Adding to 6421543341 its reverse (1433451246), we get a palindrome (7854994587).

The spelling of 6421543341 in words is "six billion, four hundred twenty-one million, five hundred forty-three thousand, three hundred forty-one".