2204444402549 has 2 divisors, whose sum is σ = 2204444402550. Its totient is φ = 2204444402548.

The previous prime is 2204444402543. The next prime is 2204444402593. The reversal of 2204444402549 is 9452044444022.

It is an a-pointer prime, because the next prime (2204444402593) can be obtained adding 2204444402549 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2180696051524 + 23748351025 = 1476718^2 + 154105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204444402549 - 2¹⁶ = 2204444337013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2204444402543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102222201274 + 1102222201275.

It is an arithmetic number, because the mean of its divisors is an integer number (1102222201275).

Almost surely, 2^{2204444402549} is an apocalyptic number.

It is an amenable number.

2204444402549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204444402549 is an equidigital number, since it uses as much as digits as its factorization.

2204444402549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 2204444402549 in words is "two trillion, two hundred four billion, four hundred forty-four million, four hundred two thousand, five hundred forty-nine".