13667430240385 has 4 divisors (see below), whose sum is σ = 16400916288468. Its totient is φ = 10933944192304.

The previous prime is 13667430240379. The next prime is 13667430240391. The reversal of 13667430240385 is 58304203476631.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13667430240379) and next prime (13667430240391).

It can be written as a sum of positive squares in 2 ways, for example, as 4330011633424 + 9337418606961 = 2080868^2 + 3055719^2 .

It is a cyclic number.

It is not a de Polignac number, because 13667430240385 - 2²¹ = 13667428143233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1366743024034 + ... + 1366743024043.

It is an arithmetic number, because the mean of its divisors is an integer number (4100229072117).

Almost surely, 2^{13667430240385} is an apocalyptic number.

It is an amenable number.

13667430240385 is a deficient number, since it is larger than the sum of its proper divisors (2733486048083).

13667430240385 is an equidigital number, since it uses as much as digits as its factorization.

13667430240385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733486048082.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 13667430240385 in words is "thirteen trillion, six hundred sixty-seven billion, four hundred thirty million, two hundred forty thousand, three hundred eighty-five".