13106420786779 has 2 divisors, whose sum is σ = 13106420786780. Its totient is φ = 13106420786778.

The previous prime is 13106420786749. The next prime is 13106420786891. The reversal of 13106420786779 is 97768702460131.

It is a weak prime.

It is an emirp because it is prime and its reverse (97768702460131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13106420786779 is a prime.

It is a super-2 number, since 2×13106420786779² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13106420786749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6553210393389 + 6553210393390.

It is an arithmetic number, because the mean of its divisors is an integer number (6553210393390).

Almost surely, 2^{13106420786779} is an apocalyptic number.

13106420786779 is a deficient number, since it is larger than the sum of its proper divisors (1).

13106420786779 is an equidigital number, since it uses as much as digits as its factorization.

13106420786779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 61.

The spelling of 13106420786779 in words is "thirteen trillion, one hundred six billion, four hundred twenty million, seven hundred eighty-six thousand, seven hundred seventy-nine".