1844404503457 has 2 divisors, whose sum is σ = 1844404503458. Its totient is φ = 1844404503456.

The previous prime is 1844404503379. The next prime is 1844404503479. The reversal of 1844404503457 is 7543054044481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1108842696256 + 735561807201 = 1053016^2 + 857649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1844404503457 - 2¹⁹ = 1844403979169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1844404503457.

It is not a weakly prime, because it can be changed into another prime (1844404503257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922202251728 + 922202251729.

It is an arithmetic number, because the mean of its divisors is an integer number (922202251729).

Almost surely, 2^{1844404503457} is an apocalyptic number.

It is an amenable number.

1844404503457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1844404503457 is an equidigital number, since it uses as much as digits as its factorization.

1844404503457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4300800, while the sum is 49.

The spelling of 1844404503457 in words is "one trillion, eight hundred forty-four billion, four hundred four million, five hundred three thousand, four hundred fifty-seven".