33204012409 has 2 divisors, whose sum is σ = 33204012410. Its totient is φ = 33204012408.

The previous prime is 33204012379. The next prime is 33204012461. The reversal of 33204012409 is 90421040233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32669478009 + 534534400 = 180747^2 + 23120^2 .

It is an emirp because it is prime and its reverse (90421040233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33204012409 is a prime.

It is a super-2 number, since 2×33204012409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33204012109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16602006204 + 16602006205.

It is an arithmetic number, because the mean of its divisors is an integer number (16602006205).

Almost surely, 2^33204012409 is an apocalyptic number.

It is an amenable number.

33204012409 is a deficient number, since it is larger than the sum of its proper divisors (1).

33204012409 is an equidigital number, since it uses as much as digits as its factorization.

33204012409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 33204012409 in words is "thirty-three billion, two hundred four million, twelve thousand, four hundred nine".