11266749291 has 24 divisors (see below), whose sum is σ = 17479804224. Its totient is φ = 6436357200.

The previous prime is 11266749289. The next prime is 11266749317. The reversal of 11266749291 is 19294766211.

It is a happy number.

It is not a de Polignac number, because 11266749291 - 2¹ = 11266749289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11266749291.

It is not an unprimeable number, because it can be changed into a prime (11266749191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668316 + ... + 684966.

It is an arithmetic number, because the mean of its divisors is an integer number (728325176).

Almost surely, 2^11266749291 is an apocalyptic number.

11266749291 is a deficient number, since it is larger than the sum of its proper divisors (6213054933).

11266749291 is a wasteful number, since it uses less digits than its factorization.

11266749291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21271 (or 21264 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The spelling of 11266749291 in words is "eleven billion, two hundred sixty-six million, seven hundred forty-nine thousand, two hundred ninety-one".