6818454720 has 896 divisors, whose sum is σ = 30911109120. Its totient is φ = 1373552640.

The previous prime is 6818454701. The next prime is 6818454749. The reversal of 6818454720 is 274548186.

6818454720 is a `hidden beast` number, since 6 + 8 + 1 + 84 + 547 + 20 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 24615222 + ... + 24615498.

Almost surely, 2^6818454720 is an apocalyptic number.

6818454720 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 6818454720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15455554560).

6818454720 is an abundant number, since it is smaller than the sum of its proper divisors (24092654400).

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

6818454720 is a wasteful number, since it uses less digits than its factorization.

6818454720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 6818454720 is about 82573.9348705147. The cubic root of 6818454720 is about 1896.2488056758.

The spelling of 6818454720 in words is "six billion, eight hundred eighteen million, four hundred fifty-four thousand, seven hundred twenty".