1794972141589 has 24 divisors (see below), whose sum is σ = 1986949770680. Its totient is φ = 1620258456960.

The previous prime is 1794972141587. The next prime is 1794972141617. The reversal of 1794972141589 is 9851412794971.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1246031922564 + 548940219025 = 1116258^2 + 740905^2 .

It is not a de Polignac number, because 1794972141589 - 2¹ = 1794972141587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1794972141587) 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 23 ways as a sum of consecutive naturals, for example, 27570127 + ... + 27635155.

Almost surely, 2^{1794972141589} is an apocalyptic number.

It is an amenable number.

1794972141589 is a deficient number, since it is larger than the sum of its proper divisors (191977629091).

1794972141589 is a wasteful number, since it uses less digits than its factorization.

1794972141589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66661 (or 66650 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 67.

The spelling of 1794972141589 in words is "one trillion, seven hundred ninety-four billion, nine hundred seventy-two million, one hundred forty-one thousand, five hundred eighty-nine".