33808633493 has 2 divisors, whose sum is σ = 33808633494. Its totient is φ = 33808633492.

The previous prime is 33808633483. The next prime is 33808633519. The reversal of 33808633493 is 39433680833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28799108209 + 5009525284 = 169703^2 + 70778^2 .

It is an emirp because it is prime and its reverse (39433680833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33808633493 - 2¹⁰ = 33808632469 is a prime.

It is a super-2 number, since 2×33808633493² (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 (33808633433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16904316746 + 16904316747.

It is an arithmetic number, because the mean of its divisors is an integer number (16904316747).

Almost surely, 2^33808633493 is an apocalyptic number.

It is an amenable number.

33808633493 is a deficient number, since it is larger than the sum of its proper divisors (1).

33808633493 is an equidigital number, since it uses as much as digits as its factorization.

33808633493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 50.

The spelling of 33808633493 in words is "thirty-three billion, eight hundred eight million, six hundred thirty-three thousand, four hundred ninety-three".