13937444405057 has 2 divisors, whose sum is σ = 13937444405058. Its totient is φ = 13937444405056.

The previous prime is 13937444405041. The next prime is 13937444405063. The reversal of 13937444405057 is 75050444473931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11974430447281 + 1963013957776 = 3460409^2 + 1401076^2 .

It is an emirp because it is prime and its reverse (75050444473931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13937444405057 - 2⁴ = 13937444405041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13937444404993 and 13937444405011.

It is not a weakly prime, because it can be changed into another prime (13937444405257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968722202528 + 6968722202529.

It is an arithmetic number, because the mean of its divisors is an integer number (6968722202529).

Almost surely, 2^{13937444405057} is an apocalyptic number.

It is an amenable number.

13937444405057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13937444405057 is an equidigital number, since it uses as much as digits as its factorization.

13937444405057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 56.

Adding to 13937444405057 its reverse (75050444473931), we get a palindrome (88987888878988).

The spelling of 13937444405057 in words is "thirteen trillion, nine hundred thirty-seven billion, four hundred forty-four million, four hundred five thousand, fifty-seven".