22385647937 has 2 divisors, whose sum is σ = 22385647938. Its totient is φ = 22385647936.

The previous prime is 22385647931. The next prime is 22385647939. The reversal of 22385647937 is 73974658322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12055161616 + 10330486321 = 109796^2 + 101639^2 .

It is a cyclic number.

It is not a de Polignac number, because 22385647937 - 2⁶ = 22385647873 is a prime.

It is a super-2 number, since 2×22385647937² (a number of 22 digits) contains 22 as substring.

Together with 22385647939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22385647931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11192823968 + 11192823969.

It is an arithmetic number, because the mean of its divisors is an integer number (11192823969).

Almost surely, 2^22385647937 is an apocalyptic number.

It is an amenable number.

22385647937 is a deficient number, since it is larger than the sum of its proper divisors (1).

22385647937 is an equidigital number, since it uses as much as digits as its factorization.

22385647937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 56.

The spelling of 22385647937 in words is "twenty-two billion, three hundred eighty-five million, six hundred forty-seven thousand, nine hundred thirty-seven".