269442101989 has 2 divisors, whose sum is σ = 269442101990. Its totient is φ = 269442101988.

The previous prime is 269442101969. The next prime is 269442102011. The reversal of 269442101989 is 989101244962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268756185889 + 685916100 = 518417^2 + 26190^2 .

It is a cyclic number.

It is not a de Polignac number, because 269442101989 - 2³¹ = 267294618341 is a prime.

It is a super-2 number, since 2×269442101989² (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 (269442101909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134721050994 + 134721050995.

It is an arithmetic number, because the mean of its divisors is an integer number (134721050995).

Almost surely, 2^269442101989 is an apocalyptic number.

It is an amenable number.

269442101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

269442101989 is an equidigital number, since it uses as much as digits as its factorization.

269442101989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 269442101989 in words is "two hundred sixty-nine billion, four hundred forty-two million, one hundred one thousand, nine hundred eighty-nine".