6820754871 has 12 divisors (see below), whose sum is σ = 10579130232. Its totient is φ = 3897574128.

The previous prime is 6820754867. The next prime is 6820754873. The reversal of 6820754871 is 1784570286.

It is not a de Polignac number, because 6820754871 - 2² = 6820754867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6820754871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820754873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23199700 + ... + 23199993.

It is an arithmetic number, because the mean of its divisors is an integer number (881594186).

Almost surely, 2^6820754871 is an apocalyptic number.

6820754871 is a deficient number, since it is larger than the sum of its proper divisors (3758375361).

6820754871 is a wasteful number, since it uses less digits than its factorization.

6820754871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46399710 (or 46399703 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The square root of 6820754871 is about 82587.8615233498. The cubic root of 6820754871 is about 1896.4620098108.

The spelling of 6820754871 in words is "six billion, eight hundred twenty million, seven hundred fifty-four thousand, eight hundred seventy-one".