22643256359 has 2 divisors, whose sum is σ = 22643256360. Its totient is φ = 22643256358.

The previous prime is 22643256341. The next prime is 22643256431. The reversal of 22643256359 is 95365234622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22643256359 - 2²⁴ = 22626479143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22643255359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11321628179 + 11321628180.

It is an arithmetic number, because the mean of its divisors is an integer number (11321628180).

Almost surely, 2^22643256359 is an apocalyptic number.

22643256359 is a deficient number, since it is larger than the sum of its proper divisors (1).

22643256359 is an equidigital number, since it uses as much as digits as its factorization.

22643256359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 47.

The spelling of 22643256359 in words is "twenty-two billion, six hundred forty-three million, two hundred fifty-six thousand, three hundred fifty-nine".