33440242529 has 2 divisors, whose sum is σ = 33440242530. Its totient is φ = 33440242528.

The previous prime is 33440242523. The next prime is 33440242567. The reversal of 33440242529 is 92524204433.

It is an a-pointer prime, because the next prime (33440242567) can be obtained adding 33440242529 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21098143504 + 12342099025 = 145252^2 + 111095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33440242529 is a prime.

It is a super-2 number, since 2×33440242529² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33440242492 and 33440242501.

It is not a weakly prime, because it can be changed into another prime (33440242523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16720121264 + 16720121265.

It is an arithmetic number, because the mean of its divisors is an integer number (16720121265).

Almost surely, 2^33440242529 is an apocalyptic number.

It is an amenable number.

33440242529 is a deficient number, since it is larger than the sum of its proper divisors (1).

33440242529 is an equidigital number, since it uses as much as digits as its factorization.

33440242529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 33440242529 in words is "thirty-three billion, four hundred forty million, two hundred forty-two thousand, five hundred twenty-nine".