22644105949 has 2 divisors, whose sum is σ = 22644105950. Its totient is φ = 22644105948.

The previous prime is 22644105929. The next prime is 22644105971. The reversal of 22644105949 is 94950144622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11722392900 + 10921713049 = 108270^2 + 104507^2 .

It is a cyclic number.

It is not a de Polignac number, because 22644105949 - 2⁵ = 22644105917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22644105899 and 22644105908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22644105929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11322052974 + 11322052975.

It is an arithmetic number, because the mean of its divisors is an integer number (11322052975).

Almost surely, 2^22644105949 is an apocalyptic number.

It is an amenable number.

22644105949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22644105949 is an equidigital number, since it uses as much as digits as its factorization.

22644105949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 22644105949 in words is "twenty-two billion, six hundred forty-four million, one hundred five thousand, nine hundred forty-nine".