13567680689 has 4 divisors (see below), whose sum is σ = 14005347840. Its totient is φ = 13130013540.

The previous prime is 13567680661. The next prime is 13567680697. The reversal of 13567680689 is 98608676531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98608676531 = 20123 ⋅4900297.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13567680689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13567680629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218833529 + ... + 218833590.

It is an arithmetic number, because the mean of its divisors is an integer number (3501336960).

Almost surely, 2^13567680689 is an apocalyptic number.

It is an amenable number.

13567680689 is a deficient number, since it is larger than the sum of its proper divisors (437667151).

13567680689 is an equidigital number, since it uses as much as digits as its factorization.

13567680689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437667150.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 13567680689 in words is "thirteen billion, five hundred sixty-seven million, six hundred eighty thousand, six hundred eighty-nine".