6811789020 has 48 divisors (see below), whose sum is σ = 19902274560. Its totient is φ = 1737499456.

The previous prime is 6811788989. The next prime is 6811789027. The reversal of 6811789020 is 209871186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6811789027) 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, 2466660 + ... + 2469419.

It is an arithmetic number, because the mean of its divisors is an integer number (414630720).

Almost surely, 2^6811789020 is an apocalyptic number.

6811789020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6811789020 is an abundant number, since it is smaller than the sum of its proper divisors (13090485540).

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

6811789020 is a wasteful number, since it uses less digits than its factorization.

6811789020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936114 (or 4936112 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 6811789020 is about 82533.5629910644. The cubic root of 6811789020 is about 1895.6306819070.

The spelling of 6811789020 in words is "six billion, eight hundred eleven million, seven hundred eighty-nine thousand, twenty".