289042193669 has 2 divisors, whose sum is σ = 289042193670. Its totient is φ = 289042193668.

The previous prime is 289042193621. The next prime is 289042193681. The reversal of 289042193669 is 966391240982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244172363044 + 44869830625 = 494138^2 + 211825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289042193669 is a prime.

It is a super-2 number, since 2×289042193669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289042153669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144521096834 + 144521096835.

It is an arithmetic number, because the mean of its divisors is an integer number (144521096835).

Almost surely, 2^289042193669 is an apocalyptic number.

It is an amenable number.

289042193669 is a deficient number, since it is larger than the sum of its proper divisors (1).

289042193669 is an equidigital number, since it uses as much as digits as its factorization.

289042193669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 289042193669 in words is "two hundred eighty-nine billion, forty-two million, one hundred ninety-three thousand, six hundred sixty-nine".