33938883509 has 4 divisors (see below), whose sum is σ = 34288769004. Its totient is φ = 33588998016.

The previous prime is 33938883499. The next prime is 33938883533. The reversal of 33938883509 is 90538883933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90538883933 = 233 ⋅388578901.

It can be written as a sum of positive squares in 2 ways, for example, as 7661500900 + 26277382609 = 87530^2 + 162103^2 .

It is a cyclic number.

It is not a de Polignac number, because 33938883509 - 2²⁰ = 33937834933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33938883809) 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, 174942602 + ... + 174942795.

It is an arithmetic number, because the mean of its divisors is an integer number (8572192251).

Almost surely, 2^33938883509 is an apocalyptic number.

It is an amenable number.

33938883509 is a deficient number, since it is larger than the sum of its proper divisors (349885495).

33938883509 is an equidigital number, since it uses as much as digits as its factorization.

33938883509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349885494.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 33938883509 in words is "thirty-three billion, nine hundred thirty-eight million, eight hundred eighty-three thousand, five hundred nine".