12240408637 has 2 divisors, whose sum is σ = 12240408638. Its totient is φ = 12240408636.

The previous prime is 12240408601. The next prime is 12240408647. The reversal of 12240408637 is 73680404221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9229252761 + 3011155876 = 96069^2 + 54874^2 .

It is a cyclic number.

It is not a de Polignac number, because 12240408637 - 2¹⁵ = 12240375869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12240408596 and 12240408605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240408647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120204318 + 6120204319.

It is an arithmetic number, because the mean of its divisors is an integer number (6120204319).

Almost surely, 2^12240408637 is an apocalyptic number.

It is an amenable number.

12240408637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240408637 is an equidigital number, since it uses as much as digits as its factorization.

12240408637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 12240408637 in words is "twelve billion, two hundred forty million, four hundred eight thousand, six hundred thirty-seven".