6818811045480 has 512 divisors, whose sum is σ = 26222486400000. Its totient is φ = 1543879471104.

The previous prime is 6818811045467. The next prime is 6818811045521. The reversal of 6818811045480 is 845401188186.

6818811045480 is a `hidden beast` number, since 6 + 8 + 1 + 8 + 8 + 110 + 45 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 420154006 + ... + 420170234.

It is an arithmetic number, because the mean of its divisors is an integer number (51215793750).

Almost surely, 2^{6818811045480} is an apocalyptic number.

6818811045480 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 6818811045480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13111243200000).

6818811045480 is an abundant number, since it is smaller than the sum of its proper divisors (19403675354520).

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

6818811045480 is a wasteful number, since it uses less digits than its factorization.

6818811045480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16778 (or 16768 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 54.

The spelling of 6818811045480 in words is "six trillion, eight hundred eighteen billion, eight hundred eleven million, forty-five thousand, four hundred eighty".