13842493256887 has 2 divisors, whose sum is σ = 13842493256888. Its totient is φ = 13842493256886.

The previous prime is 13842493256857. The next prime is 13842493256897. The reversal of 13842493256887 is 78865239424831.

It is a strong prime.

It is an emirp because it is prime and its reverse (78865239424831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13842493256887 is a prime.

It is a super-2 number, since 2×13842493256887² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13842493256857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6921246628443 + 6921246628444.

It is an arithmetic number, because the mean of its divisors is an integer number (6921246628444).

Almost surely, 2^{13842493256887} is an apocalyptic number.

13842493256887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13842493256887 is an equidigital number, since it uses as much as digits as its factorization.

13842493256887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 557383680, while the sum is 70.

The spelling of 13842493256887 in words is "thirteen trillion, eight hundred forty-two billion, four hundred ninety-three million, two hundred fifty-six thousand, eight hundred eighty-seven".