6206868644 has 12 divisors (see below), whose sum is σ = 10867783500. Its totient is φ = 3101787648.

The previous prime is 6206868631. The next prime is 6206868649. The reversal of 6206868644 is 4468686026.

It can be written as a sum of positive squares in 2 ways, for example, as 4673363044 + 1533505600 = 68362^2 + 39160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6206868592 and 6206868601.

It is not an unprimeable number, because it can be changed into a prime (6206868649) 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 3 ways as a sum of consecutive naturals, for example, 403169 + ... + 418280.

It is an arithmetic number, because the mean of its divisors is an integer number (905648625).

Almost surely, 2^6206868644 is an apocalyptic number.

It is an amenable number.

6206868644 is a deficient number, since it is larger than the sum of its proper divisors (4660914856).

6206868644 is a wasteful number, since it uses less digits than its factorization.

6206868644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823342 (or 823340 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The square root of 6206868644 is about 78783.6825998887. The cubic root of 6206868644 is about 1837.7687039998.

The spelling of 6206868644 in words is "six billion, two hundred six million, eight hundred sixty-eight thousand, six hundred forty-four".