6421622324 has 24 divisors (see below), whose sum is σ = 12227063688. Its totient is φ = 2933268480.

The previous prime is 6421622297. The next prime is 6421622327. The reversal of 6421622324 is 4232261246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 171138724 + 6250483600 = 13082^2 + 79060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421622327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631517 + ... + 641604.

It is an arithmetic number, because the mean of its divisors is an integer number (509460987).

Almost surely, 2^6421622324 is an apocalyptic number.

It is an amenable number.

6421622324 is a deficient number, since it is larger than the sum of its proper divisors (5805441364).

6421622324 is a wasteful number, since it uses less digits than its factorization.

6421622324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273235 (or 1273233 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 6421622324 is about 80135.0255755871. The cubic root of 6421622324 is about 1858.7240568915.

The spelling of 6421622324 in words is "six billion, four hundred twenty-one million, six hundred twenty-two thousand, three hundred twenty-four".