11317872667 has 4 divisors (see below), whose sum is σ = 11322301456. Its totient is φ = 11313443880.

The previous prime is 11317872661. The next prime is 11317872679. The reversal of 11317872667 is 76627871311.

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

It is a cyclic number.

It is not a de Polignac number, because 11317872667 - 2¹⁹ = 11317348379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11317872667.

It is not an unprimeable number, because it can be changed into a prime (11317872661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210559 + ... + 2215672.

It is an arithmetic number, because the mean of its divisors is an integer number (2830575364).

Almost surely, 2^11317872667 is an apocalyptic number.

11317872667 is a deficient number, since it is larger than the sum of its proper divisors (4428789).

11317872667 is an equidigital number, since it uses as much as digits as its factorization.

11317872667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428788.

The product of its digits is 592704, while the sum is 49.

The spelling of 11317872667 in words is "eleven billion, three hundred seventeen million, eight hundred seventy-two thousand, six hundred sixty-seven".