6338786445 has 12 divisors (see below), whose sum is σ = 10987229916. Its totient is φ = 3380686080.

The previous prime is 6338786393. The next prime is 6338786449. The reversal of 6338786445 is 5446878336.

6338786445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1420008489 + 4918777956 = 37683^2 + 70134^2 .

It is not a de Polignac number, because 6338786445 - 2⁶ = 6338786381 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6338786391 and 6338786400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6338786449) 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 11 ways as a sum of consecutive naturals, for example, 70430916 + ... + 70431005.

It is an arithmetic number, because the mean of its divisors is an integer number (915602493).

Almost surely, 2^6338786445 is an apocalyptic number.

It is an amenable number.

6338786445 is a deficient number, since it is larger than the sum of its proper divisors (4648443471).

6338786445 is a wasteful number, since it uses less digits than its factorization.

6338786445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140861932 (or 140861929 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The square root of 6338786445 is about 79616.4960608039. The cubic root of 6338786445 is about 1850.6972239287.

The spelling of 6338786445 in words is "six billion, three hundred thirty-eight million, seven hundred eighty-six thousand, four hundred forty-five".