13403780671 has 2 divisors, whose sum is σ = 13403780672. Its totient is φ = 13403780670.

The previous prime is 13403780669. The next prime is 13403780683. The reversal of 13403780671 is 17608730431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13403780671 - 2¹ = 13403780669 is a prime.

It is a super-2 number, since 2×13403780671² (a number of 21 digits) contains 22 as substring.

Together with 13403780669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13403780371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701890335 + 6701890336.

It is an arithmetic number, because the mean of its divisors is an integer number (6701890336).

Almost surely, 2^13403780671 is an apocalyptic number.

13403780671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403780671 is an equidigital number, since it uses as much as digits as its factorization.

13403780671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 13403780671 in words is "thirteen billion, four hundred three million, seven hundred eighty thousand, six hundred seventy-one".