6533428785 has 16 divisors (see below), whose sum is σ = 11257600704. Its totient is φ = 3216457152.

The previous prime is 6533428771. The next prime is 6533428793. The reversal of 6533428785 is 5878243356.

It is a happy number.

It is not a de Polignac number, because 6533428785 - 2⁵ = 6533428753 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16752187 + ... + 16752576.

It is an arithmetic number, because the mean of its divisors is an integer number (703600044).

Almost surely, 2^6533428785 is an apocalyptic number.

6533428785 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6533428785 is a deficient number, since it is larger than the sum of its proper divisors (4724171919).

6533428785 is a wasteful number, since it uses less digits than its factorization.

6533428785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33504784.

The product of its digits is 4838400, while the sum is 51.

The square root of 6533428785 is about 80829.6281384493. The cubic root of 6533428785 is about 1869.4494251664.

The spelling of 6533428785 in words is "six billion, five hundred thirty-three million, four hundred twenty-eight thousand, seven hundred eighty-five".