22637247697 has 2 divisors, whose sum is σ = 22637247698. Its totient is φ = 22637247696.

The previous prime is 22637247671. The next prime is 22637247733. The reversal of 22637247697 is 79674273622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22255865856 + 381381841 = 149184^2 + 19529^2 .

It is a cyclic number.

It is not a de Polignac number, because 22637247697 - 2⁷ = 22637247569 is a prime.

It is not a weakly prime, because it can be changed into another prime (22637247637) by changing a digit.

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 as a sum of consecutive naturals, namely, 11318623848 + 11318623849.

It is an arithmetic number, because the mean of its divisors is an integer number (11318623849).

Almost surely, 2^22637247697 is an apocalyptic number.

It is an amenable number.

22637247697 is a deficient number, since it is larger than the sum of its proper divisors (1).

22637247697 is an equidigital number, since it uses as much as digits as its factorization.

22637247697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 55.

The spelling of 22637247697 in words is "twenty-two billion, six hundred thirty-seven million, two hundred forty-seven thousand, six hundred ninety-seven".