33409144609 has 2 divisors, whose sum is σ = 33409144610. Its totient is φ = 33409144608.

The previous prime is 33409144597. The next prime is 33409144619. The reversal of 33409144609 is 90644190433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31357326400 + 2051818209 = 177080^2 + 45297^2 .

It is a cyclic number.

It is not a de Polignac number, because 33409144609 - 2¹³ = 33409136417 is a prime.

It is a super-2 number, since 2×33409144609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33409144619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16704572304 + 16704572305.

It is an arithmetic number, because the mean of its divisors is an integer number (16704572305).

Almost surely, 2^33409144609 is an apocalyptic number.

It is an amenable number.

33409144609 is a deficient number, since it is larger than the sum of its proper divisors (1).

33409144609 is an equidigital number, since it uses as much as digits as its factorization.

33409144609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 33409144609 in words is "thirty-three billion, four hundred nine million, one hundred forty-four thousand, six hundred nine".