33638825852 has 12 divisors (see below), whose sum is σ = 58880199840. Its totient is φ = 16815911616.

The previous prime is 33638825851. The next prime is 33638825863. The reversal of 33638825852 is 25852883633.

It is a happy number.

It is a super-2 number, since 2×33638825852² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33638825794 and 33638825803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33638825851) 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 3 ways as a sum of consecutive naturals, for example, 853652 + ... + 892187.

It is an arithmetic number, because the mean of its divisors is an integer number (4906683320).

Almost surely, 2^33638825852 is an apocalyptic number.

It is an amenable number.

33638825852 is a deficient number, since it is larger than the sum of its proper divisors (25241373988).

33638825852 is a wasteful number, since it uses less digits than its factorization.

33638825852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750660 (or 1750658 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 53.

The spelling of 33638825852 in words is "thirty-three billion, six hundred thirty-eight million, eight hundred twenty-five thousand, eight hundred fifty-two".