22861634450 has 18 divisors (see below), whose sum is σ = 42524628789. Its totient is φ = 9144226120.

The previous prime is 22861634417. The next prime is 22861634479. The reversal of 22861634450 is 5443616822.

It can be written as a sum of positive squares in 2 ways, for example, as 22404401761 + 457232689 = 149681^2 + 21383^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106915.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22861634398 and 22861634407.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 1058459 + ... + 1079841.

Almost surely, 2^22861634450 is an apocalyptic number.

22861634450 is a deficient number, since it is larger than the sum of its proper divisors (19662994339).

22861634450 is an frugal number, since it uses more digits than its factorization.

22861634450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42778 (or 21390 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 22861634450 in words is "twenty-two billion, eight hundred sixty-one million, six hundred thirty-four thousand, four hundred fifty".