11867273567 has 4 divisors (see below), whose sum is σ = 11867560536. Its totient is φ = 11866986600.

The previous prime is 11867273533. The next prime is 11867273653. The reversal of 11867273567 is 76537276811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76537276811 = 39869 ⋅1919719.

It is a cyclic number.

It is not a de Polignac number, because 11867273567 - 2⁶ = 11867273503 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 (11867273527) 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, 68333 + ... + 168534.

It is an arithmetic number, because the mean of its divisors is an integer number (2966890134).

Almost surely, 2^11867273567 is an apocalyptic number.

11867273567 is a deficient number, since it is larger than the sum of its proper divisors (286969).

11867273567 is an equidigital number, since it uses as much as digits as its factorization.

11867273567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286968.

The product of its digits is 2963520, while the sum is 53.

The spelling of 11867273567 in words is "eleven billion, eight hundred sixty-seven million, two hundred seventy-three thousand, five hundred sixty-seven".