22643097912 has 128 divisors (see below), whose sum is σ = 67536115200. Its totient is φ = 7003584000.

The previous prime is 22643097881. The next prime is 22643097973. The reversal of 22643097912 is 21979034622.

22643097912 is a `hidden beast` number, since 2 + 264 + 309 + 79 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217287 + ... + 304137.

It is an arithmetic number, because the mean of its divisors is an integer number (527625900).

Almost surely, 2^22643097912 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 22643097912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33768057600).

22643097912 is an abundant number, since it is smaller than the sum of its proper divisors (44893017288).

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

22643097912 is a wasteful number, since it uses less digits than its factorization.

22643097912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86954 (or 86944 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 22643097912 in words is "twenty-two billion, six hundred forty-three million, ninety-seven thousand, nine hundred twelve".