6726779280 has 480 divisors, whose sum is σ = 25478369280. Its totient is φ = 1579253760.

The previous prime is 6726779273. The next prime is 6726779281. The reversal of 6726779280 is 829776276.

It is not an unprimeable number, because it can be changed into a prime (6726779281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28145401 + ... + 28145639.

It is an arithmetic number, because the mean of its divisors is an integer number (53079936).

Almost surely, 2^6726779280 is an apocalyptic number.

6726779280 is a gapful number since it is divisible by the number (60) 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 6726779280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12739184640).

6726779280 is an abundant number, since it is smaller than the sum of its proper divisors (18751590000).

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

6726779280 is a wasteful number, since it uses less digits than its factorization.

6726779280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The square root of 6726779280 is about 82016.9450784410. The cubic root of 6726779280 is about 1887.7119536260.

The spelling of 6726779280 in words is "six billion, seven hundred twenty-six million, seven hundred seventy-nine thousand, two hundred eighty".