444335271649 has 2 divisors, whose sum is σ = 444335271650. Its totient is φ = 444335271648.

The previous prime is 444335271571. The next prime is 444335271661. The reversal of 444335271649 is 946172533444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274504740624 + 169830531025 = 523932^2 + 412105^2 .

It is a cyclic number.

It is not a de Polignac number, because 444335271649 - 2²¹ = 444333174497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444335271596 and 444335271605.

It is not a weakly prime, because it can be changed into another prime (444335271049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222167635824 + 222167635825.

It is an arithmetic number, because the mean of its divisors is an integer number (222167635825).

Almost surely, 2^444335271649 is an apocalyptic number.

It is an amenable number.

444335271649 is a deficient number, since it is larger than the sum of its proper divisors (1).

444335271649 is an equidigital number, since it uses as much as digits as its factorization.

444335271649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 52.

The spelling of 444335271649 in words is "four hundred forty-four billion, three hundred thirty-five million, two hundred seventy-one thousand, six hundred forty-nine".