33199544449 has 4 divisors (see below), whose sum is σ = 33201707220. Its totient is φ = 33197381680.

The previous prime is 33199544429. The next prime is 33199544501. The reversal of 33199544449 is 94444599133.

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 20069822224 + 13129722225 = 141668^2 + 114585^2 .

It is a cyclic number.

It is not a de Polignac number, because 33199544449 - 2⁷ = 33199544321 is a prime.

It is a super-2 number, since 2×33199544449² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33199544449.

It is not an unprimeable number, because it can be changed into a prime (33199544429) 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, 1058194 + ... + 1089115.

It is an arithmetic number, because the mean of its divisors is an integer number (8300426805).

Almost surely, 2^33199544449 is an apocalyptic number.

It is an amenable number.

33199544449 is a deficient number, since it is larger than the sum of its proper divisors (2162771).

33199544449 is a wasteful number, since it uses less digits than its factorization.

33199544449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162770.

The product of its digits is 8398080, while the sum is 55.

The spelling of 33199544449 in words is "thirty-three billion, one hundred ninety-nine million, five hundred forty-four thousand, four hundred forty-nine".