6520785204 has 24 divisors (see below), whose sum is σ = 15224116320. Its totient is φ = 2172316384.

The previous prime is 6520785203. The next prime is 6520785233. The reversal of 6520785204 is 4025870256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520785203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138474 + ... + 179489.

It is an arithmetic number, because the mean of its divisors is an integer number (634338180).

Almost surely, 2^6520785204 is an apocalyptic number.

It is an amenable number.

6520785204 is an abundant number, since it is smaller than the sum of its proper divisors (8703331116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6520785204 is a wasteful number, since it uses less digits than its factorization.

6520785204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319679 (or 319677 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 6520785204 is about 80751.3789603620. The cubic root of 6520785204 is about 1868.2427183629.

The spelling of 6520785204 in words is "six billion, five hundred twenty million, seven hundred eighty-five thousand, two hundred four".