33805040069 has 2 divisors, whose sum is σ = 33805040070. Its totient is φ = 33805040068.

The previous prime is 33805039969. The next prime is 33805040081. The reversal of 33805040069 is 96004050833.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26231689444 + 7573350625 = 161962^2 + 87025^2 .

It is an emirp because it is prime and its reverse (96004050833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33805040069 - 2¹² = 33805035973 is a prime.

It is a super-2 number, since 2×33805040069² (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 (33805040569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16902520034 + 16902520035.

It is an arithmetic number, because the mean of its divisors is an integer number (16902520035).

Almost surely, 2^33805040069 is an apocalyptic number.

It is an amenable number.

33805040069 is a deficient number, since it is larger than the sum of its proper divisors (1).

33805040069 is an equidigital number, since it uses as much as digits as its factorization.

33805040069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 33805040069 in words is "thirty-three billion, eight hundred five million, forty thousand, sixty-nine".