84422321280 has 768 divisors, whose sum is σ = 335622268800. Its totient is φ = 20105625600.

The previous prime is 84422321189. The next prime is 84422321293. The reversal of 84422321280 is 8212322448.

84422321280 is a `hidden beast` number, since 84 + 422 + 32 + 128 + 0 = 666.

It is a hoax number, since the sum of its digits (36) 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 (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 104353516 + ... + 104354324.

Almost surely, 2^84422321280 is an apocalyptic number.

84422321280 is a gapful number since it is divisible by the number (80) 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 84422321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167811134400).

84422321280 is an abundant number, since it is smaller than the sum of its proper divisors (251199947520).

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

84422321280 is a wasteful number, since it uses less digits than its factorization.

84422321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 84422321280 in words is "eighty-four billion, four hundred twenty-two million, three hundred twenty-one thousand, two hundred eighty".