22638052852 has 6 divisors (see below), whose sum is σ = 39616592498. Its totient is φ = 11319026424.

The previous prime is 22638052817. The next prime is 22638052859. The reversal of 22638052852 is 25825083622.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15829162596 + 6808890256 = 125814^2 + 82516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22638052799 and 22638052808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638052859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2829756603 + ... + 2829756610.

Almost surely, 2^22638052852 is an apocalyptic number.

It is an amenable number.

22638052852 is a deficient number, since it is larger than the sum of its proper divisors (16978539646).

22638052852 is a wasteful number, since it uses less digits than its factorization.

22638052852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659513217 (or 5659513215 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 22638052852 in words is "twenty-two billion, six hundred thirty-eight million, fifty-two thousand, eight hundred fifty-two".