22073142449 has 2 divisors, whose sum is σ = 22073142450. Its totient is φ = 22073142448.

The previous prime is 22073142439. The next prime is 22073142467. The reversal of 22073142449 is 94424137022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21474850849 + 598291600 = 146543^2 + 24460^2 .

It is a cyclic number.

It is not a de Polignac number, because 22073142449 - 2⁴ = 22073142433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22073142409) 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 as a sum of consecutive naturals, namely, 11036571224 + 11036571225.

It is an arithmetic number, because the mean of its divisors is an integer number (11036571225).

Almost surely, 2^22073142449 is an apocalyptic number.

It is an amenable number.

22073142449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22073142449 is an equidigital number, since it uses as much as digits as its factorization.

22073142449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 22073142449 in words is "twenty-two billion, seventy-three million, one hundred forty-two thousand, four hundred forty-nine".