33890019329 has 2 divisors, whose sum is σ = 33890019330. Its totient is φ = 33890019328.

The previous prime is 33890019301. The next prime is 33890019337. The reversal of 33890019329 is 92391009833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32170009600 + 1720009729 = 179360^2 + 41473^2 .

It is an emirp because it is prime and its reverse (92391009833) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33890019329 is a prime.

It is a super-2 number, since 2×33890019329² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33890019029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16945009664 + 16945009665.

It is an arithmetic number, because the mean of its divisors is an integer number (16945009665).

Almost surely, 2^33890019329 is an apocalyptic number.

It is an amenable number.

33890019329 is a deficient number, since it is larger than the sum of its proper divisors (1).

33890019329 is an equidigital number, since it uses as much as digits as its factorization.

33890019329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 33890019329 in words is "thirty-three billion, eight hundred ninety million, nineteen thousand, three hundred twenty-nine".