22041409549 has 2 divisors, whose sum is σ = 22041409550. Its totient is φ = 22041409548.

The previous prime is 22041409547. The next prime is 22041409597. The reversal of 22041409549 is 94590414022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19633053924 + 2408355625 = 140118^2 + 49075^2 .

It is a cyclic number.

It is not a de Polignac number, because 22041409549 - 2¹ = 22041409547 is a prime.

Together with 22041409547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22041409547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11020704774 + 11020704775.

It is an arithmetic number, because the mean of its divisors is an integer number (11020704775).

Almost surely, 2^22041409549 is an apocalyptic number.

It is an amenable number.

22041409549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22041409549 is an equidigital number, since it uses as much as digits as its factorization.

22041409549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 22041409549 in words is "twenty-two billion, forty-one million, four hundred nine thousand, five hundred forty-nine".