22193447745 has 24 divisors (see below), whose sum is σ = 41306989824. Its totient is φ = 10145575776.

The previous prime is 22193447719. The next prime is 22193447767. The reversal of 22193447745 is 54774439122.

It is not a de Polignac number, because 22193447745 - 2⁶ = 22193447681 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22193447694 and 22193447703.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15096849 + ... + 15098318.

It is an arithmetic number, because the mean of its divisors is an integer number (1721124576).

Almost surely, 2^22193447745 is an apocalyptic number.

It is an amenable number.

22193447745 is a deficient number, since it is larger than the sum of its proper divisors (19113542079).

22193447745 is a wasteful number, since it uses less digits than its factorization.

22193447745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30195189 (or 30195182 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The spelling of 22193447745 in words is "twenty-two billion, one hundred ninety-three million, four hundred forty-seven thousand, seven hundred forty-five".