6385409073 has 12 divisors (see below), whose sum is σ = 9227827908. Its totient is φ = 4254881280.

The previous prime is 6385409039. The next prime is 6385409087. The reversal of 6385409073 is 3709045836.

6385409073 is a `hidden beast` number, since 6 + 38 + 540 + 9 + 0 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1716693489 + 4668715584 = 41433^2 + 68328^2 .

It is not a de Polignac number, because 6385409073 - 2⁸ = 6385408817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6385409033) 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, 151740 + ... + 189197.

It is an arithmetic number, because the mean of its divisors is an integer number (768985659).

Almost surely, 2^6385409073 is an apocalyptic number.

It is an amenable number.

6385409073 is a deficient number, since it is larger than the sum of its proper divisors (2842418835).

6385409073 is a wasteful number, since it uses less digits than its factorization.

6385409073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343024 (or 343021 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6385409073 is about 79908.7546705616. The cubic root of 6385409073 is about 1855.2235206034.

The spelling of 6385409073 in words is "six billion, three hundred eighty-five million, four hundred nine thousand, seventy-three".