12240737961437 has 2 divisors, whose sum is σ = 12240737961438. Its totient is φ = 12240737961436.

The previous prime is 12240737961341. The next prime is 12240737961511. The reversal of 12240737961437 is 73416973704221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6262351095961 + 5978386865476 = 2502469^2 + 2445074^2 .

It is a cyclic number.

It is not a de Polignac number, because 12240737961437 - 2¹⁰ = 12240737960413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240737961937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120368980718 + 6120368980719.

It is an arithmetic number, because the mean of its divisors is an integer number (6120368980719).

Almost surely, 2^{12240737961437} is an apocalyptic number.

It is an amenable number.

12240737961437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240737961437 is an equidigital number, since it uses as much as digits as its factorization.

12240737961437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 12240737961437 in words is "twelve trillion, two hundred forty billion, seven hundred thirty-seven million, nine hundred sixty-one thousand, four hundred thirty-seven".