6385128753 has 16 divisors (see below), whose sum is σ = 9028630656. Its totient is φ = 3999985920.

The previous prime is 6385128751. The next prime is 6385128791. The reversal of 6385128753 is 3578215836.

It is not a de Polignac number, because 6385128753 - 2¹ = 6385128751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6385128751) 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 15 ways as a sum of consecutive naturals, for example, 67026 + ... + 131387.

It is an arithmetic number, because the mean of its divisors is an integer number (564289416).

Almost surely, 2^6385128753 is an apocalyptic number.

It is an amenable number.

6385128753 is a deficient number, since it is larger than the sum of its proper divisors (2643501903).

6385128753 is a wasteful number, since it uses less digits than its factorization.

6385128753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199064.

The product of its digits is 1209600, while the sum is 48.

The square root of 6385128753 is about 79907.0006507565. Note that the first 3 decimals coincide. The cubic root of 6385128753 is about 1855.1963720495.

The spelling of 6385128753 in words is "six billion, three hundred eighty-five million, one hundred twenty-eight thousand, seven hundred fifty-three".