20444404249 has 2 divisors, whose sum is σ = 20444404250. Its totient is φ = 20444404248.

The previous prime is 20444404237. The next prime is 20444404261. The reversal of 20444404249 is 94240444402.

It is a balanced prime because it is at equal distance from previous prime (20444404237) and next prime (20444404261).

It can be written as a sum of positive squares in only one way, i.e., 17415553024 + 3028851225 = 131968^2 + 55035^2 .

It is a cyclic number.

It is not a de Polignac number, because 20444404249 - 2⁷ = 20444404121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20444404229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10222202124 + 10222202125.

It is an arithmetic number, because the mean of its divisors is an integer number (10222202125).

Almost surely, 2^20444404249 is an apocalyptic number.

It is an amenable number.

20444404249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20444404249 is an equidigital number, since it uses as much as digits as its factorization.

20444404249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 37.

The spelling of 20444404249 in words is "twenty billion, four hundred forty-four million, four hundred four thousand, two hundred forty-nine".