6520875812803 has 8 divisors (see below), whose sum is σ = 7172473472496. Its totient is φ = 5928068919520.

The previous prime is 6520875812761. The next prime is 6520875812813. The reversal of 6520875812803 is 3082185780256.

It is not a de Polignac number, because 6520875812803 - 2⁹ = 6520875812291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6520875812813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449613926 + ... + 2449616587.

It is an arithmetic number, because the mean of its divisors is an integer number (896559184062).

Almost surely, 2^{6520875812803} is an apocalyptic number.

6520875812803 is a deficient number, since it is larger than the sum of its proper divisors (651597659693).

6520875812803 is an equidigital number, since it uses as much as digits as its factorization.

6520875812803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899230546 (or 4899230524 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 6520875812803 in words is "six trillion, five hundred twenty billion, eight hundred seventy-five million, eight hundred twelve thousand, eight hundred three".