6780355712 has 96 divisors (see below), whose sum is σ = 15100047360. Its totient is φ = 3028147200.

The previous prime is 6780355609. The next prime is 6780355717. The reversal of 6780355712 is 2175530876.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6780355717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 665537 + ... + 675647.

It is an arithmetic number, because the mean of its divisors is an integer number (157292160).

Almost surely, 2^6780355712 is an apocalyptic number.

6780355712 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6780355712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7550023680).

6780355712 is an abundant number, since it is smaller than the sum of its proper divisors (8319691648).

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

6780355712 is a wasteful number, since it uses less digits than its factorization.

6780355712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10182 (or 10157 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 6780355712 is about 82342.9153722407. The cubic root of 6780355712 is about 1892.7103608477.

The spelling of 6780355712 in words is "six billion, seven hundred eighty million, three hundred fifty-five thousand, seven hundred twelve".