33809491065 has 32 divisors (see below), whose sum is σ = 62693830656. Its totient is φ = 15238077120.

The previous prime is 33809491063. The next prime is 33809491103. The reversal of 33809491065 is 56019490833.

It is not a de Polignac number, because 33809491065 - 2¹ = 33809491063 is a prime.

It is a super-2 number, since 2×33809491065² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (33809491063) 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 in 31 ways as a sum of consecutive naturals, for example, 2260117 + ... + 2275026.

It is an arithmetic number, because the mean of its divisors is an integer number (1959182208).

Almost surely, 2^33809491065 is an apocalyptic number.

33809491065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33809491065 is a deficient number, since it is larger than the sum of its proper divisors (28884339591).

33809491065 is a wasteful number, since it uses less digits than its factorization.

33809491065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4535229.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 33809491065 in words is "thirty-three billion, eight hundred nine million, four hundred ninety-one thousand, sixty-five".