22137648437 has 2 divisors, whose sum is σ = 22137648438. Its totient is φ = 22137648436.

The previous prime is 22137648383. The next prime is 22137648443. The reversal of 22137648437 is 73484673122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20425840561 + 1711807876 = 142919^2 + 41374^2 .

It is a cyclic number.

It is not a de Polignac number, because 22137648437 - 2³² = 17842681141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22137648391 and 22137648400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22137648457) 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, 11068824218 + 11068824219.

It is an arithmetic number, because the mean of its divisors is an integer number (11068824219).

Almost surely, 2^22137648437 is an apocalyptic number.

It is an amenable number.

22137648437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22137648437 is an equidigital number, since it uses as much as digits as its factorization.

22137648437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 47.

The spelling of 22137648437 in words is "twenty-two billion, one hundred thirty-seven million, six hundred forty-eight thousand, four hundred thirty-seven".