22446809738 has 24 divisors (see below), whose sum is σ = 34913348652. Its totient is φ = 10823323392.

The previous prime is 22446809729. The next prime is 22446809797. The reversal of 22446809738 is 83790864422.

It can be written as a sum of positive squares in 6 ways, for example, as 19428735769 + 3018073969 = 139387^2 + 54937^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22446809738.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467506 + ... + 1482722.

Almost surely, 2^22446809738 is an apocalyptic number.

22446809738 is a deficient number, since it is larger than the sum of its proper divisors (12466538914).

22446809738 is a wasteful number, since it uses less digits than its factorization.

22446809738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16154 (or 16125 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 22446809738 in words is "twenty-two billion, four hundred forty-six million, eight hundred nine thousand, seven hundred thirty-eight".