6421401213 has 16 divisors (see below), whose sum is σ = 8596769280. Its totient is φ = 4263514416.

The previous prime is 6421401193. The next prime is 6421401251. The reversal of 6421401213 is 3121041246.

It is not a de Polignac number, because 6421401213 - 2⁶ = 6421401149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421401713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003458 + ... + 1009836.

It is an arithmetic number, because the mean of its divisors is an integer number (537298080).

Almost surely, 2^6421401213 is an apocalyptic number.

It is an amenable number.

6421401213 is a deficient number, since it is larger than the sum of its proper divisors (2175368067).

6421401213 is a wasteful number, since it uses less digits than its factorization.

6421401213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 6421401213 is about 80133.6459485028. The cubic root of 6421401213 is about 1858.7027232870.

Adding to 6421401213 its reverse (3121041246), we get a palindrome (9542442459).

The spelling of 6421401213 in words is "six billion, four hundred twenty-one million, four hundred one thousand, two hundred thirteen".