1044890795601 has 27 divisors (see below), whose sum is σ = 1551349171281. Its totient is φ = 677693404224.

The previous prime is 1044890795591. The next prime is 1044890795609. The reversal of 1044890795601 is 1065970984401.

The square root of 1044890795601 is 1022199.

It is a perfect power (a square), and thus also a powerful number.

1044890795601 is a `hidden beast` number, since 1 + 0 + 4 + 4 + 8 + 9 + 0 + 79 + 560 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5151650625 + 1039739144976 = 71775^2 + 1019676^2 .

It is not a de Polignac number, because 1044890795601 - 2⁵ = 1044890795569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1044890795609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 113459485 + ... + 113468693.

Almost surely, 2^{1044890795601} is an apocalyptic number.

1044890795601 is the 1022199-th square number.

1044890795601 is the 511100-th centered octagonal number.

It is an amenable number.

1044890795601 is a deficient number, since it is larger than the sum of its proper divisors (506458375680).

1044890795601 is an frugal number, since it uses more digits than its factorization.

1044890795601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18498 (or 9249 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1044890795601 in words is "one trillion, forty-four billion, eight hundred ninety million, seven hundred ninety-five thousand, six hundred one".