22643256430 has 16 divisors (see below), whose sum is σ = 42529942944. Its totient is φ = 8663506720.

The previous prime is 22643256359. The next prime is 22643256431. The reversal of 22643256430 is 3465234622.

It is a self number, because there is not a number n which added to its sum of digits gives 22643256430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22643256431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49224241 + ... + 49224700.

It is an arithmetic number, because the mean of its divisors is an integer number (2658121434).

Almost surely, 2^22643256430 is an apocalyptic number.

22643256430 is a deficient number, since it is larger than the sum of its proper divisors (19886686514).

22643256430 is a wasteful number, since it uses less digits than its factorization.

22643256430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98448971.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 22643256430 in words is "twenty-two billion, six hundred forty-three million, two hundred fifty-six thousand, four hundred thirty".