6781420912 has 40 divisors (see below), whose sum is σ = 15021968096. Its totient is φ = 2905168896.

The previous prime is 6781420889. The next prime is 6781420931. The reversal of 6781420912 is 2190241876.

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 7 ways as a sum of consecutive naturals, for example, 309388 + ... + 330580.

Almost surely, 2^6781420912 is an apocalyptic number.

It is an amenable number.

6781420912 is an abundant number, since it is smaller than the sum of its proper divisors (8240547184).

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

6781420912 is a wasteful number, since it uses less digits than its factorization.

6781420912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24065 (or 24059 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 6781420912 is about 82349.3831913755. The cubic root of 6781420912 is about 1892.8094711596.

The spelling of 6781420912 in words is "six billion, seven hundred eighty-one million, four hundred twenty thousand, nine hundred twelve".