33389945573 has 2 divisors, whose sum is σ = 33389945574. Its totient is φ = 33389945572.

The previous prime is 33389945551. The next prime is 33389945629. The reversal of 33389945573 is 37554998333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32993816164 + 396129409 = 181642^2 + 19903^2 .

It is a cyclic number.

It is not a de Polignac number, because 33389945573 - 2¹² = 33389941477 is a prime.

It is a super-2 number, since 2×33389945573² (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 (33389905573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16694972786 + 16694972787.

It is an arithmetic number, because the mean of its divisors is an integer number (16694972787).

Almost surely, 2^33389945573 is an apocalyptic number.

It is an amenable number.

33389945573 is a deficient number, since it is larger than the sum of its proper divisors (1).

33389945573 is an equidigital number, since it uses as much as digits as its factorization.

33389945573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 59.

The spelling of 33389945573 in words is "thirty-three billion, three hundred eighty-nine million, nine hundred forty-five thousand, five hundred seventy-three".