11279248267 has 4 divisors (see below), whose sum is σ = 12890569456. Its totient is φ = 9667927080.

The previous prime is 11279248259. The next prime is 11279248273. The reversal of 11279248267 is 76284297211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76284297211 = 31 ⋅2460783781.

It is not a de Polignac number, because 11279248267 - 2³ = 11279248259 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 11279248267.

It is not an unprimeable number, because it can be changed into a prime (11279248207) 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, 805660584 + ... + 805660597.

It is an arithmetic number, because the mean of its divisors is an integer number (3222642364).

Almost surely, 2^11279248267 is an apocalyptic number.

11279248267 is a deficient number, since it is larger than the sum of its proper divisors (1611321189).

11279248267 is an equidigital number, since it uses as much as digits as its factorization.

11279248267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611321188.

The product of its digits is 677376, while the sum is 49.

The spelling of 11279248267 in words is "eleven billion, two hundred seventy-nine million, two hundred forty-eight thousand, two hundred sixty-seven".