6422728256880 has 960 divisors, whose sum is σ = 22686611963904. Its totient is φ = 1493904384000.

The previous prime is 6422728256863. The next prime is 6422728256887. The reversal of 6422728256880 is 886528272246.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6422728256887) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 38459450557 + ... + 38459450723.

Almost surely, 2^{6422728256880} is an apocalyptic number.

6422728256880 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 6422728256880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11343305981952).

6422728256880 is an abundant number, since it is smaller than the sum of its proper divisors (16263883707024).

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

6422728256880 is a wasteful number, since it uses less digits than its factorization.

6422728256880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 6422728256880 in words is "six trillion, four hundred twenty-two billion, seven hundred twenty-eight million, two hundred fifty-six thousand, eight hundred eighty".