33805039999 has 4 divisors (see below), whose sum is σ = 34153545664. Its totient is φ = 33456534336.

The previous prime is 33805039969. The next prime is 33805040069. The reversal of 33805039999 is 99993050833.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 33805039999 - 2¹⁹ = 33804515711 is a prime.

It is a super-2 number, since 2×33805039999² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33805039909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174252687 + ... + 174252880.

It is an arithmetic number, because the mean of its divisors is an integer number (8538386416).

Almost surely, 2^33805039999 is an apocalyptic number.

33805039999 is a deficient number, since it is larger than the sum of its proper divisors (348505665).

33805039999 is an equidigital number, since it uses as much as digits as its factorization.

33805039999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348505664.

The product of its (nonzero) digits is 7085880, while the sum is 58.

The spelling of 33805039999 in words is "thirty-three billion, eight hundred five million, thirty-nine thousand, nine hundred ninety-nine".