1044506671889 has 2 divisors, whose sum is σ = 1044506671890. Its totient is φ = 1044506671888.

The previous prime is 1044506671849. The next prime is 1044506671891. The reversal of 1044506671889 is 9881766054401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 690838581889 + 353668090000 = 831167^2 + 594700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044506671889 - 2²⁰ = 1044505623313 is a prime.

It is a Sophie Germain prime.

Together with 1044506671891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1044506671849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522253335944 + 522253335945.

It is an arithmetic number, because the mean of its divisors is an integer number (522253335945).

Almost surely, 2^{1044506671889} is an apocalyptic number.

It is an amenable number.

1044506671889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044506671889 is an equidigital number, since it uses as much as digits as its factorization.

1044506671889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 1044506671889 in words is "one trillion, forty-four billion, five hundred six million, six hundred seventy-one thousand, eight hundred eighty-nine".