33638229249 has 8 divisors (see below), whose sum is σ = 44854139712. Its totient is φ = 22423902480.

The previous prime is 33638229227. The next prime is 33638229257. The reversal of 33638229249 is 94292283633.

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

It is not a de Polignac number, because 33638229249 - 2⁹ = 33638228737 is a prime.

It is a super-2 number, since 2×33638229249² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33638209249) by changing a digit.

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, 345442 + ... + 431979.

It is an arithmetic number, because the mean of its divisors is an integer number (5606767464).

Almost surely, 2^33638229249 is an apocalyptic number.

It is an amenable number.

33638229249 is a deficient number, since it is larger than the sum of its proper divisors (11215910463).

33638229249 is a wasteful number, since it uses less digits than its factorization.

33638229249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791847.

The product of its digits is 3359232, while the sum is 51.

The spelling of 33638229249 in words is "thirty-three billion, six hundred thirty-eight million, two hundred twenty-nine thousand, two hundred forty-nine".