13509267679 has 8 divisors (see below), whose sum is σ = 13766332320. Its totient is φ = 13252283616.

The previous prime is 13509267659. The next prime is 13509267703. The reversal of 13509267679 is 97676290531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13509267679 - 2⁵ = 13509267647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509267619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401302 + ... + 433660.

It is an arithmetic number, because the mean of its divisors is an integer number (1720791540).

Almost surely, 2^13509267679 is an apocalyptic number.

13509267679 is a deficient number, since it is larger than the sum of its proper divisors (257064641).

13509267679 is an equidigital number, since it uses as much as digits as its factorization.

13509267679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40289.

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 13509267679 in words is "thirteen billion, five hundred nine million, two hundred sixty-seven thousand, six hundred seventy-nine".