33127457189 has 2 divisors, whose sum is σ = 33127457190. Its totient is φ = 33127457188.

The previous prime is 33127457149. The next prime is 33127457191. The reversal of 33127457189 is 98175472133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32124468289 + 1002988900 = 179233^2 + 31670^2 .

It is an emirp because it is prime and its reverse (98175472133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33127457189 - 2¹⁶ = 33127391653 is a prime.

It is a Sophie Germain prime.

Together with 33127457191, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33127457149) 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, 16563728594 + 16563728595.

It is an arithmetic number, because the mean of its divisors is an integer number (16563728595).

Almost surely, 2^33127457189 is an apocalyptic number.

It is an amenable number.

33127457189 is a deficient number, since it is larger than the sum of its proper divisors (1).

33127457189 is an equidigital number, since it uses as much as digits as its factorization.

33127457189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The spelling of 33127457189 in words is "thirty-three billion, one hundred twenty-seven million, four hundred fifty-seven thousand, one hundred eighty-nine".