33543412901 has 2 divisors, whose sum is σ = 33543412902. Its totient is φ = 33543412900.

The previous prime is 33543412891. The next prime is 33543412913. The reversal of 33543412901 is 10921434533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28523832100 + 5019580801 = 168890^2 + 70849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33543412901 is a prime.

It is a super-2 number, since 2×33543412901² (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 (33543412951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16771706450 + 16771706451.

It is an arithmetic number, because the mean of its divisors is an integer number (16771706451).

Almost surely, 2^33543412901 is an apocalyptic number.

It is an amenable number.

33543412901 is a deficient number, since it is larger than the sum of its proper divisors (1).

33543412901 is an equidigital number, since it uses as much as digits as its factorization.

33543412901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 33543412901 in words is "thirty-three billion, five hundred forty-three million, four hundred twelve thousand, nine hundred one".