8422718021280 has 144 divisors (see below), whose sum is σ = 29992200376320. Its totient is φ = 2148403428864.

The previous prime is 8422718021243. The next prime is 8422718021287. The reversal of 8422718021280 is 821208172248.

8422718021280 is a `hidden beast` number, since 8 + 4 + 2 + 271 + 80 + 21 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (8422718021287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127121440 + ... + 127187679.

It is an arithmetic number, because the mean of its divisors is an integer number (208279169280).

Almost surely, 2^{8422718021280} is an apocalyptic number.

8422718021280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8422718021280 is an abundant number, since it is smaller than the sum of its proper divisors (21569482355040).

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

8422718021280 is a wasteful number, since it uses less digits than its factorization.

8422718021280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254309163 (or 254309152 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The spelling of 8422718021280 in words is "eight trillion, four hundred twenty-two billion, seven hundred eighteen million, twenty-one thousand, two hundred eighty".