33384678361 has 2 divisors, whose sum is σ = 33384678362. Its totient is φ = 33384678360.

The previous prime is 33384678343. The next prime is 33384678391. The reversal of 33384678361 is 16387648333.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19139062336 + 14245616025 = 138344^2 + 119355^2 .

It is a cyclic number.

It is not a de Polignac number, because 33384678361 - 2⁹ = 33384677849 is a prime.

It is a super-2 number, since 2×33384678361² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33384678299 and 33384678308.

It is not a weakly prime, because it can be changed into another prime (33384678391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16692339180 + 16692339181.

It is an arithmetic number, because the mean of its divisors is an integer number (16692339181).

Almost surely, 2^33384678361 is an apocalyptic number.

It is an amenable number.

33384678361 is a deficient number, since it is larger than the sum of its proper divisors (1).

33384678361 is an equidigital number, since it uses as much as digits as its factorization.

33384678361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 52.

The spelling of 33384678361 in words is "thirty-three billion, three hundred eighty-four million, six hundred seventy-eight thousand, three hundred sixty-one".