84422321279 has 4 divisors (see below), whose sum is σ = 84429089184. Its totient is φ = 84415553376.

The previous prime is 84422321189. The next prime is 84422321293. The reversal of 84422321279 is 97212322448.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84422321279 - 2³⁶ = 15702844543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84422329279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3365207 + ... + 3390200.

It is an arithmetic number, because the mean of its divisors is an integer number (21107272296).

Almost surely, 2^84422321279 is an apocalyptic number.

84422321279 is a deficient number, since it is larger than the sum of its proper divisors (6767905).

84422321279 is a wasteful number, since it uses less digits than its factorization.

84422321279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767904.

The product of its digits is 387072, while the sum is 44.

The spelling of 84422321279 in words is "eighty-four billion, four hundred twenty-two million, three hundred twenty-one thousand, two hundred seventy-nine".