33042012989 has 2 divisors, whose sum is σ = 33042012990. Its totient is φ = 33042012988.

The previous prime is 33042012977. The next prime is 33042013009. The reversal of 33042012989 is 98921024033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30116825764 + 2925187225 = 173542^2 + 54085^2 .

It is a cyclic number.

It is not a de Polignac number, because 33042012989 - 2²⁴ = 33025235773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33042012389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16521006494 + 16521006495.

It is an arithmetic number, because the mean of its divisors is an integer number (16521006495).

Almost surely, 2^33042012989 is an apocalyptic number.

It is an amenable number.

33042012989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33042012989 is an equidigital number, since it uses as much as digits as its factorization.

33042012989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 33042012989 in words is "thirty-three billion, forty-two million, twelve thousand, nine hundred eighty-nine".