13615397671 has 2 divisors, whose sum is σ = 13615397672. Its totient is φ = 13615397670.

The previous prime is 13615397669. The next prime is 13615397689. The reversal of 13615397671 is 17679351631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13615397671 - 2¹ = 13615397669 is a prime.

Together with 13615397669, 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 (13615397651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6807698835 + 6807698836.

It is an arithmetic number, because the mean of its divisors is an integer number (6807698836).

Almost surely, 2^13615397671 is an apocalyptic number.

13615397671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13615397671 is an equidigital number, since it uses as much as digits as its factorization.

13615397671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 714420, while the sum is 49.

The spelling of 13615397671 in words is "thirteen billion, six hundred fifteen million, three hundred ninety-seven thousand, six hundred seventy-one".