22086439128 has 192 divisors, whose sum is σ = 67078851840. Its totient is φ = 6767950464.

The previous prime is 22086439127. The next prime is 22086439163. The reversal of 22086439128 is 82193468022.

22086439128 is a `hidden beast` number, since 2 + 208 + 6 + 439 + 1 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22086439127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6644875 + ... + 6648197.

It is an arithmetic number, because the mean of its divisors is an integer number (349369020).

Almost surely, 2^22086439128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22086439128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33539425920).

22086439128 is an abundant number, since it is smaller than the sum of its proper divisors (44992412712).

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

22086439128 is a wasteful number, since it uses less digits than its factorization.

22086439128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 22086439128 in words is "twenty-two billion, eighty-six million, four hundred thirty-nine thousand, one hundred twenty-eight".