33840271909 has 2 divisors, whose sum is σ = 33840271910. Its totient is φ = 33840271908.

The previous prime is 33840271873. The next prime is 33840271981. The reversal of 33840271909 is 90917204833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24792077025 + 9048194884 = 157455^2 + 95122^2 .

It is a cyclic number.

It is not a de Polignac number, because 33840271909 - 2⁹ = 33840271397 is a prime.

It is a super-2 number, since 2×33840271909² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33840251909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16920135954 + 16920135955.

It is an arithmetic number, because the mean of its divisors is an integer number (16920135955).

Almost surely, 2^33840271909 is an apocalyptic number.

It is an amenable number.

33840271909 is a deficient number, since it is larger than the sum of its proper divisors (1).

33840271909 is an equidigital number, since it uses as much as digits as its factorization.

33840271909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 33840271909 in words is "thirty-three billion, eight hundred forty million, two hundred seventy-one thousand, nine hundred nine".