6820533263 has 16 divisors (see below), whose sum is σ = 7391793024. Its totient is φ = 6268776960.

The previous prime is 6820533221. The next prime is 6820533277. The reversal of 6820533263 is 3623350286.

It is a cyclic number.

It is not a de Polignac number, because 6820533263 - 2⁶ = 6820533199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820533283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359081 + ... + 377597.

It is an arithmetic number, because the mean of its divisors is an integer number (461987064).

Almost surely, 2^6820533263 is an apocalyptic number.

6820533263 is a deficient number, since it is larger than the sum of its proper divisors (571259761).

6820533263 is a wasteful number, since it uses less digits than its factorization.

6820533263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19042.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 6820533263 is about 82586.5198625054. The cubic root of 6820533263 is about 1896.4414707496.

The spelling of 6820533263 in words is "six billion, eight hundred twenty million, five hundred thirty-three thousand, two hundred sixty-three".