6771841920 has 128 divisors (see below), whose sum is σ = 23983668000. Its totient is φ = 1805819904.

The previous prime is 6771841883. The next prime is 6771841963. The reversal of 6771841920 is 291481776.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178665 + ... + 213224.

Almost surely, 2^6771841920 is an apocalyptic number.

6771841920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6771841920 is an abundant number, since it is smaller than the sum of its proper divisors (17211826080).

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

6771841920 is a wasteful number, since it uses less digits than its factorization.

6771841920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391917 (or 391899 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 6771841920 is about 82291.2019598693. The cubic root of 6771841920 is about 1891.9178315505.

The spelling of 6771841920 in words is "six billion, seven hundred seventy-one million, eight hundred forty-one thousand, nine hundred twenty".