1794972141409 has 2 divisors, whose sum is σ = 1794972141410. Its totient is φ = 1794972141408.

The previous prime is 1794972141397. The next prime is 1794972141467. The reversal of 1794972141409 is 9041412794971.

It is an a-pointer prime, because the next prime (1794972141467) can be obtained adding 1794972141409 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1126894771809 + 668077369600 = 1061553^2 + 817360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1794972141409 - 2²³ = 1794963752801 is a prime.

It is a super-2 number, since 2×1794972141409² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1794972141499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897486070704 + 897486070705.

It is an arithmetic number, because the mean of its divisors is an integer number (897486070705).

Almost surely, 2^{1794972141409} is an apocalyptic number.

It is an amenable number.

1794972141409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1794972141409 is an equidigital number, since it uses as much as digits as its factorization.

1794972141409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 1794972141409 in words is "one trillion, seven hundred ninety-four billion, nine hundred seventy-two million, one hundred forty-one thousand, four hundred nine".