6413226021 has 12 divisors (see below), whose sum is σ = 9513915372. Its totient is φ = 4159930176.

The previous prime is 6413226007. The next prime is 6413226023. The reversal of 6413226021 is 1206223146.

6413226021 is a `hidden beast` number, since 6 + 413 + 226 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6048950625 + 364275396 = 77775^2 + 19086^2 .

It is not a de Polignac number, because 6413226021 - 2¹³ = 6413217829 is a prime.

It is a super-2 number, since 2×6413226021² = 82258935992862984882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6413226023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9629136 + ... + 9629801.

It is an arithmetic number, because the mean of its divisors is an integer number (792826281).

Almost surely, 2^6413226021 is an apocalyptic number.

It is an amenable number.

6413226021 is a deficient number, since it is larger than the sum of its proper divisors (3100689351).

6413226021 is a wasteful number, since it uses less digits than its factorization.

6413226021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19258980 (or 19258977 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6413226021 is about 80082.6199683802. The cubic root of 6413226021 is about 1857.9136065955.

Adding to 6413226021 its reverse (1206223146), we get a palindrome (7619449167).

The spelling of 6413226021 in words is "six billion, four hundred thirteen million, two hundred twenty-six thousand, twenty-one".