22464784512 has 256 divisors, whose sum is σ = 67483852800. Its totient is φ = 7356220416.

The previous prime is 22464784451. The next prime is 22464784561. The reversal of 22464784512 is 21548746422.

22464784512 is a `hidden beast` number, since 2 + 2 + 4 + 64 + 78 + 4 + 512 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79380723 + ... + 79381005.

It is an arithmetic number, because the mean of its divisors is an integer number (263608800).

Almost surely, 2^22464784512 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 22464784512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33741926400).

22464784512 is an abundant number, since it is smaller than the sum of its proper divisors (45019068288).

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

22464784512 is a wasteful number, since it uses less digits than its factorization.

22464784512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 614 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The spelling of 22464784512 in words is "twenty-two billion, four hundred sixty-four million, seven hundred eighty-four thousand, five hundred twelve".