22863645009 has 8 divisors (see below), whose sum is σ = 33872066720. Its totient is φ = 15242429988.

The previous prime is 22863644963. The next prime is 22863645097. The reversal of 22863645009 is 90054636822.

22863645009 is a `hidden beast` number, since 2 + 2 + 8 + 636 + 4 + 5 + 0 + 0 + 9 = 666.

It is not a de Polignac number, because 22863645009 - 2⁹ = 22863644497 is a prime.

It is a super-2 number, since 2×22863645009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22863645809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423400807 + ... + 423400860.

It is an arithmetic number, because the mean of its divisors is an integer number (4234008340).

Almost surely, 2^22863645009 is an apocalyptic number.

It is an amenable number.

22863645009 is a deficient number, since it is larger than the sum of its proper divisors (11008421711).

22863645009 is an equidigital number, since it uses as much as digits as its factorization.

22863645009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846801676 (or 846801670 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 22863645009 in words is "twenty-two billion, eight hundred sixty-three million, six hundred forty-five thousand, nine".