1394289089269 has 2 divisors, whose sum is σ = 1394289089270. Its totient is φ = 1394289089268.

The previous prime is 1394289089203. The next prime is 1394289089299. The reversal of 1394289089269 is 9629809824931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394170562500 + 118526769 = 1180750^2 + 10887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1394289089269 - 2²¹ = 1394286992117 is a prime.

It is a super-2 number, since 2×1394289089269² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1394289089198 and 1394289089207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394289089299) 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 as a sum of consecutive naturals, namely, 697144544634 + 697144544635.

It is an arithmetic number, because the mean of its divisors is an integer number (697144544635).

Almost surely, 2^{1394289089269} is an apocalyptic number.

It is an amenable number.

1394289089269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394289089269 is an equidigital number, since it uses as much as digits as its factorization.

1394289089269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120932352, while the sum is 70.

The spelling of 1394289089269 in words is "one trillion, three hundred ninety-four billion, two hundred eighty-nine million, eighty-nine thousand, two hundred sixty-nine".