12404555540437 has 2 divisors, whose sum is σ = 12404555540438. Its totient is φ = 12404555540436.

The previous prime is 12404555540417. The next prime is 12404555540449. The reversal of 12404555540437 is 73404555540421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12370421499921 + 34134040516 = 3517161^2 + 184754^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404555540437 - 2³¹ = 12402408056789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12404555540417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202277770218 + 6202277770219.

It is an arithmetic number, because the mean of its divisors is an integer number (6202277770219).

Almost surely, 2^{12404555540437} is an apocalyptic number.

It is an amenable number.

12404555540437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12404555540437 is an equidigital number, since it uses as much as digits as its factorization.

12404555540437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720000, while the sum is 49.

The spelling of 12404555540437 in words is "twelve trillion, four hundred four billion, five hundred fifty-five million, five hundred forty thousand, four hundred thirty-seven".