1044169247861 has 2 divisors, whose sum is σ = 1044169247862. Its totient is φ = 1044169247860.

The previous prime is 1044169247713. The next prime is 1044169247897. The reversal of 1044169247861 is 1687429614401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 748484522500 + 295684725361 = 865150^2 + 543769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1044169247861 - 2¹⁰ = 1044169246837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1044169244861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522084623930 + 522084623931.

It is an arithmetic number, because the mean of its divisors is an integer number (522084623931).

Almost surely, 2^{1044169247861} is an apocalyptic number.

It is an amenable number.

1044169247861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1044169247861 is an equidigital number, since it uses as much as digits as its factorization.

1044169247861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 1044169247861 in words is "one trillion, forty-four billion, one hundred sixty-nine million, two hundred forty-seven thousand, eight hundred sixty-one".