6856712533 has 16 divisors (see below), whose sum is σ = 8056857600. Its totient is φ = 5767962480.

The previous prime is 6856712519. The next prime is 6856712549. The reversal of 6856712533 is 3352176586.

It is a cyclic number.

It is not a de Polignac number, because 6856712533 - 2⁵ = 6856712501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6856712633) 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, 372493 + ... + 390466.

It is an arithmetic number, because the mean of its divisors is an integer number (503553600).

Almost surely, 2^6856712533 is an apocalyptic number.

It is an amenable number.

6856712533 is a deficient number, since it is larger than the sum of its proper divisors (1200145067).

6856712533 is a wasteful number, since it uses less digits than its factorization.

6856712533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763032.

The product of its digits is 907200, while the sum is 46.

The square root of 6856712533 is about 82805.2687514508. The cubic root of 6856712533 is about 1899.7887607261.

The spelling of 6856712533 in words is "six billion, eight hundred fifty-six million, seven hundred twelve thousand, five hundred thirty-three".