22444467779 has 2 divisors, whose sum is σ = 22444467780. Its totient is φ = 22444467778.

The previous prime is 22444467757. The next prime is 22444467791. The reversal of 22444467779 is 97776444422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22444467779 - 2¹² = 22444463683 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (22444467979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222233889 + 11222233890.

It is an arithmetic number, because the mean of its divisors is an integer number (11222233890).

Almost surely, 2^22444467779 is an apocalyptic number.

22444467779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444467779 is an equidigital number, since it uses as much as digits as its factorization.

22444467779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18966528, while the sum is 56.

The spelling of 22444467779 in words is "twenty-two billion, four hundred forty-four million, four hundred sixty-seven thousand, seven hundred seventy-nine".