33728635805 has 8 divisors (see below), whose sum is σ = 40475938272. Its totient is φ = 26981858448.

The previous prime is 33728635777. The next prime is 33728635819. The reversal of 33728635805 is 50853682733.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33728635805 - 2¹² = 33728631709 is a prime.

It is a super-2 number, since 2×33728635805² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27494 + ... + 261176.

It is an arithmetic number, because the mean of its divisors is an integer number (5059492284).

Almost surely, 2^33728635805 is an apocalyptic number.

It is an amenable number.

33728635805 is a deficient number, since it is larger than the sum of its proper divisors (6747302467).

33728635805 is a wasteful number, since it uses less digits than its factorization.

33728635805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262555.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 33728635805 in words is "thirty-three billion, seven hundred twenty-eight million, six hundred thirty-five thousand, eight hundred five".