20044444400249 has 2 divisors, whose sum is σ = 20044444400250. Its totient is φ = 20044444400248.

The previous prime is 20044444400221. The next prime is 20044444400263. The reversal of 20044444400249 is 94200444444002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16322149444624 + 3722294955625 = 4040068^2 + 1929325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20044444400249 is a prime.

It is a super-2 number, since 2×20044444400249² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20044444408249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022222200124 + 10022222200125.

It is an arithmetic number, because the mean of its divisors is an integer number (10022222200125).

Almost surely, 2^{20044444400249} is an apocalyptic number.

It is an amenable number.

20044444400249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044444400249 is an equidigital number, since it uses as much as digits as its factorization.

20044444400249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 589824, while the sum is 41.

The spelling of 20044444400249 in words is "twenty trillion, forty-four billion, four hundred forty-four million, four hundred thousand, two hundred forty-nine".