33091930549 has 4 divisors (see below), whose sum is σ = 33233956236. Its totient is φ = 32949904864.

The previous prime is 33091930513. The next prime is 33091930631. The reversal of 33091930549 is 94503919033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17847089649 + 15244840900 = 133593^2 + 123470^2 .

It is a cyclic number.

It is not a de Polignac number, because 33091930549 - 2⁹ = 33091930037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33091930499 and 33091930508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33091930349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71012494 + ... + 71012959.

It is an arithmetic number, because the mean of its divisors is an integer number (8308489059).

Almost surely, 2^33091930549 is an apocalyptic number.

It is an amenable number.

33091930549 is a deficient number, since it is larger than the sum of its proper divisors (142025687).

33091930549 is a wasteful number, since it uses less digits than its factorization.

33091930549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142025686.

The product of its (nonzero) digits is 393660, while the sum is 46.

The spelling of 33091930549 in words is "thirty-three billion, ninety-one million, nine hundred thirty thousand, five hundred forty-nine".