33209608073 has 2 divisors, whose sum is σ = 33209608074. Its totient is φ = 33209608072.

The previous prime is 33209608043. The next prime is 33209608093. The reversal of 33209608073 is 37080690233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29378988409 + 3830619664 = 171403^2 + 61892^2 .

It is an emirp because it is prime and its reverse (37080690233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33209608073 is a prime.

It is a super-2 number, since 2×33209608073² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33209608073.

It is not a weakly prime, because it can be changed into another prime (33209608043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16604804036 + 16604804037.

It is an arithmetic number, because the mean of its divisors is an integer number (16604804037).

Almost surely, 2^33209608073 is an apocalyptic number.

It is an amenable number.

33209608073 is a deficient number, since it is larger than the sum of its proper divisors (1).

33209608073 is an equidigital number, since it uses as much as digits as its factorization.

33209608073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 33209608073 in words is "thirty-three billion, two hundred nine million, six hundred eight thousand, seventy-three".