13784313671 has 2 divisors, whose sum is σ = 13784313672. Its totient is φ = 13784313670.

The previous prime is 13784313623. The next prime is 13784313689. The reversal of 13784313671 is 17631348731.

It is a strong prime.

It is an emirp because it is prime and its reverse (17631348731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13784313671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13784313601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6892156835 + 6892156836.

It is an arithmetic number, because the mean of its divisors is an integer number (6892156836).

Almost surely, 2^13784313671 is an apocalyptic number.

13784313671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13784313671 is an equidigital number, since it uses as much as digits as its factorization.

13784313671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The spelling of 13784313671 in words is "thirteen billion, seven hundred eighty-four million, three hundred thirteen thousand, six hundred seventy-one".