13838441828357 has 2 divisors, whose sum is σ = 13838441828358. Its totient is φ = 13838441828356.

The previous prime is 13838441828339. The next prime is 13838441828363. The reversal of 13838441828357 is 75382814483831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10534477610596 + 3303964217761 = 3245686^2 + 1817681^2 .

It is an emirp because it is prime and its reverse (75382814483831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13838441828357 - 2⁶ = 13838441828293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13838441828293 and 13838441828302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13838441828257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6919220914178 + 6919220914179.

It is an arithmetic number, because the mean of its divisors is an integer number (6919220914179).

Almost surely, 2^{13838441828357} is an apocalyptic number.

It is an amenable number.

13838441828357 is a deficient number, since it is larger than the sum of its proper divisors (1).

13838441828357 is an equidigital number, since it uses as much as digits as its factorization.

13838441828357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123863040, while the sum is 65.

The spelling of 13838441828357 in words is "thirteen trillion, eight hundred thirty-eight billion, four hundred forty-one million, eight hundred twenty-eight thousand, three hundred fifty-seven".